Sergio Valencia Del Toro: 5 Fast Facts You Need to Know

Sergio Valencia Del Toro

Sergio Valencia Del Toro killed three people and himself in Menasha, Wisconsin. (Facebook)

An Air Force veteran fatally shot three people, including a father and his 11-year-old daughter, in a random, unprovoked attack Sunday night on a popular pedestrian bridge in Wisconsin, before killing himself.

Sergio Valencia Del Toro, 27, was angry after a fight with his fiancee about the end of their engagement, the Post Crescent reported.

Del Toro armed himself with two handguns and went to the Fox Cities Trestle Trail bridge in Menasha, where he opened fire on a family and a 31-year-old man. Police do not think he knew the victims.

Jon Stoffel, 33, of Neenah, Wisconsin, and his 11-year-old daughter, Olivia, were killed in the attack. Erin Stoffel, 32, the mother of Olivia and Jonathan’s wife, was shot three times and critically injured. The family’s two other children, a boy and girl ages 5 and 7, were not hurt.

Adam Bentdahl, of Appleton, Wisconsin, was also killed.

Here’s what you need to know:

1. After Fighting With His Fiancee, Del Toro Rode His Bike to the Popular Bridge

Sergio Valencia Del Toro

Sergio Valencia Del Toro and his fiancee. (Facebook)

Police said at a press conference that Del Toro armed himself with two hand guns following the fight with his fiancee, Haylie Peterson, and then rode his bicycle to trail bridge, where the shooting occurred.

About 75 to 100 people were on the bridge when the gunfire broke out, according to police.

Del Toro rode his bike past other people before shooting at the victims. He didn’t say a word before opening fire with two handguns, a 9mm and a revolver, Police Chief Tim Styka said at the press conference.

Despite being wounded, Erin Stoffel was able to get her two youngest children, Ezra, 7, and Selah, 5, to safety, police said, taking them off the bridge. She told Ezra to run and get help, Styka said.

An unidentified man with a dog “gathered him in,” Winnebago County Coroner Barry Busby told the Post Crescent. “It was a little boy who helped save his mother’s life,” Busby said.

Dr. Ray Georgen, the director of trauma services at Theda Clark Medical Center. the hospital where, Stoffel was treated, said the boy helped emergency responders get to his mother quick enough to save her. Some people at the park thought the gun shots were fireworks.

Styka said the shooting could have been worse. Del Toro shot the Stoffels and Bentdahl with the pistol, before killing himself with the revolver. He had a holster on his right hip and ammunition on his left, along with camouflage pants.

Styka said the shooting spree could have been worse considering the weapons and ammunition Valencia del Toro had. Two handguns — a 9 mm semi-automatic pistol and a revolver — were fired, and Styka said at least six to 10 rounds were spent.

Styka said he had other weapons that were found at his home.

2. He & His Fiancee Were Engaged in 2014

Sergio Valencia Del Toro and his fiancee after he proposed to her in 2014.

Sergio Valencia Del Toro and his fiancee after he proposed to her in 2014.

Del Toro proposed to his fiancee in March 2014, according to a post on his Facebook page.

His fiancee, Haylie Peterson, who was photographed at the scene fainting after learning he had died, posted a message on Del Toro’s Facebook page after his death, and said he had been suffering from depression:

Sergio… my first true deep love.
Three years ago september I came back from Kyrgyzstan and was met with your wondrous gaze full of hope and laughter. I fell back in love instantly with a man I thought I had once lost forever.. one that forgave me for my faults and embraced all my crazy quirks. Beyond the love, we built a friendship that I believed could conquer mountains… I thought I had a life partner. Today, I along with too many others are in mourning, I lost someone I cared deeply for, I lost my partner, I lost my first true love, I lost a piece of my heart and soul I am not sure I will ever get back. You have forever changed me in many ways. To the man I knew before the depression, the happy-go-lucky, incredibly silly and inspiring man that captivated my entire essence in a blink of an eye, I love you so much and cherished our love, you taught me how to love and be loved. You taught me to always be myself no matter what, and to always be true to myself. You always reminded me of my worth and how much you loved me. Gone are possibilities of forever and the white picket fence, and on comes the next chapter. The one where I, along with all those in mourning pick up the pieces and try to overcome and heal.. I loved you.. to the moon and back. I don’t know where to go from here or what to do. I didn’t get to say goodbye.. This pain is overwhelming..

3. Del Toro Served in the Air Force & Had Recently Enlisted in the Army

Sergio Valencia Del Toro. (Facebook)

Sergio Valencia Del Toro. (Facebook)

Originally from Los Angeles, Del Toro served in the Air Force from 2009 to 2014, before receiving an early separation. According to his Facebook page, he was deployed overseas during his time in the military.

His last base was Travis Air Force Base in California.

Police said Del Toro has recently enlisted in the U.S. Army after also joining the National Guard following his time in the Air Force. He was set to head to basic training in June.

He had no prior criminal record and legally possessed the weapons used in the shooting.

4. He & His Fiancee Were Studying at a Wisconsin College

Sergio Valencia Del Toro (Facebook)

Sergio Valencia Del Toro (Facebook)

Del Toro was a second semester freshman at the University of Wisconsin-Oshkosh, the school told the New York Daily News.

He was studying criminal justice and had also been training with the Menasha Auxiliary Police, an unarmed, volunteer community policing team, according to the Post Crescent.

Haylie Peterson, Del Toro’s fiancee, talked to the Advance-Titan, the student newspaper at Wisconsin-Oshkosh, but declined to talk about what led to the shooting.

“It’s not the right time,” Peterson, who is also a student at the school, said. “I feel for the families. I am so sorry for their pain and loss. I will comment when everyone has had time to process and heal.”

She said what police and the media are saying is wrong. Police said they called off the wedding last week and had a fight before the shooting, but Peterson denied that.

“What’s going around isn’t true,” Peterson said. “We weren’t arguing and we weren’t broken up.”

Peterson has been cooperating with police. She said Del Toro wasn’t being treated for Post Traumatic Stress Disorder, but was battling depression, and had been since he was younger.

“I still need time to wrap my head around it,” she said. “He was my future husband.”

5. A Fundraiser Has Been Set-Up to Help the Stoffel Family

Jonathan Stoffel, Olivia Stoffel

Jonathan and Oliva Stoffel were killed by Sergio Valencia Del Toro. (GoFundMe)

A GoFundMe page has been set-up to help the Stoffel family, raising thousands of dollars.

The family loved the outdoors, Jim Campbell, Erin Stoffel’s brother told The Associated Press. He said they enjoyed camping, hiking and fishing together.

Erin Stoffel suffered wounds to her abdomen, thigh and hand, but is expected to survive after undergoing surgery.

“You can never underestimate the power of a mother to protect her children,” Dr. Ray Georgen, the director of trauma services at Theda Clark Medical Center told the Post Crescent. “To have three gunshot wounds and be able to get off that bridge and save two of her children is incredible. It’s an amazing story of heroism on her part and certainly of her children.”

Adam Bentdahl’s family said he was a kind and gentle person with a bright personality, according to The Associated Press.



What about the Stoffels?

The unnamed fiancee obviously is heartbroken, but were ANY of her comments directed to the fate of the family he murdered deleted from the post? The dead people, of whom she is not one? If not, did Del Toro leave the fiancee because she was intolerably self-centered? (Not that that, in any way, ameliorates the horror of his crime.) All I see here is self-pity – virtually the opposite of what I’d expect from the interview of a good human being who herself survived the event.


Absolutely, that’s what I got from it. Her name is Hailey Peterson, and apparently she could give a fuck about the innocent people he killed. The comments of their friends and family to this post on FB was also devoid of any remorse or acknowledgement about his heinous act. Instead they were all tripping over each other to console her. It was shocking.


I just want to say that I knew both of them and haylie is devastated. I’ve spoken with her all day, she doesn’t have a clue what to think right now, and is in overdrive. She has talked about the familis numerous times and has expressed to me she wishes she could go to them and apologize for everything. She has a huge heart, but keep in mind the person loved and was going to marry just murdered a family, I myself probably wouldn’t even be able to speak. Remember the media has a way of twisting things. Let me know how well u respond when your in this type of situation. All of us who knew VDT and were stationed with him are stunned And angry and mourning, and let me tell you, ita very hard to mourn someone who has done something like this. I will tell you though she has the family in her thoughts and prayers, we all do, and they are all we are all thinking about, she just isn’t and has never been the best with words. like I said though u tell me how we’ll u respond to a situation like this.


Article states he was distraught over their breakup not a pending marriage.


Nobody cares. He killed an 11 year old girl with 3 F’n bullets at close range. I DGAF who he was, that no longer matters, he’s a PoS as is his Fiance. Sorry, but “good” people don’t go around flashing up how “Gangsta” they are with 100 dollar bills. People know white trash when they see it… And depressed?!? Please…Robin Williams was depressed, as are millions of others, but they didn’t feel a need to empty 14 shots into random strangers before taking their own lives.

Phileas Fogg

Both are human dog shit. F_ING LIBTARDS think they have a right to throw away someonelses life, the life of an 11 year old girl. Liberalism is the mental health epidemic of our time and the only cure is Conservatives with concealed carry weapons tho put this human dog shit out of it’s misery.


Seek professional help, before you hurt someone, moron.


I knew Sergio personally. He was one of my very close friends, and was FAR from a pos human. Coming from someone who knew the man behind the gun, it is a very, very difficult, confusing place to be. . This is a story you see on the news and your first thought is how awful of a person someone must be to do terrible things like he has. . but he wasn’t that man. The man that did this isnt the one any of us knew,. Far from. This man was the man to gather every child in the neighborhood and play with them until sun down. . until every child was too exhausted to play anymore.He helped teach my son to swim. This man was the man who spent every holiday with me for 2 years during his time at Travis AFB. Depression is a very real disease, and its consequences are far reaching. I am so incredibly devastated by the whole situation, as are all of the others that knew him. My heart is torn by the loss of my friend, yet it absolutely continues to break for the families of those lost as well. . There is no prescribed way to handle such a terrible situation, but casting judgment surely doesnt help.


What an insensitive thing to say about such a tragic situation. How dare you place yourself in a position to judge the actions/reactions of individuals you can make only mere speculations about? To her, not only was there mass tragedy involved in the situation, she lost her fiance. . the man she loved. Add to that the fact that he did unthinkable things that no one would EVER in their wildest dreams imagine Sergio capable of. I knew this man very well, and he was the last person on earth anyone would suspect of doing something such as this. What would YOU say when there are hundred, maybe thousands of people looking to you for some explanation for someone elses actions when you, yourself, are devastated by a loss and confused by his actions.. what exactly would you say? This IS, indeed an incredibly awful event, and the things he did to those innocent people are unspeakable, but never, for a moment has anyone involved in this situation forgotten the others who were lost. . it only adds to the pain and heartache.


He also posted 9/11 opinions on his FB page, stating America was to blame.


Dancing Israeli’s, demolition of Building 7, Wikipedia page on foreknowledge of attacks, William Rodriguez, simulated response to a similar attack staged on same day, Cheney giving stand down orders to military jets, over 1000 engineers and architects stating physical impossibilities, rocket not plane hit Pentagon destroying evidence of trillion dollar government fraud announced by Rumsfeld on 9/10/01……………

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