(CNN) -- A 16-year-old Indiana high school football player confessed to fatally stabbing a pregnant schoolmate after she waited too long to tell him about the pregnancy to get an abortion, according to court papers.

Aaron Trejo, a member of the Mishawaka High School football team, was charged Monday with murder and feticide in the death of Breana Rouhselang on Saturday. The 17-year-old junior and cheerleader at the school east of South Bend was six months pregnant, her mother told police, according to an affidavit. An autopsy confirmed the pregnancy.

Trejo told authorities he was aware of Breana's pregnancy and that he was alleged to be the father, the affidavit said, but he said neither wanted to have the baby. He said the two fought about the child before he stabbed Breana in the heart with a knife on Saturday, according to the affidavit. He then put a black plastic bag over her, put her body in a dumpster, and threw her phone and the knife in a river, court papers said.

"I took action ... I took her life," he said, when asked by authorities what he did when he learned she had waited too long to get an abortion by the time she told him of the pregnancy, according to the affidavit.

Trejo told authorities "he had been planning and thinking about killing Breana and the baby for about a week and had not told anybody," according to the affidavit.

An autopsy revealed that Breana died from multiple stab wounds and was choked with her scarf, the affidavit said.

Trejo, who is being held without bond, is scheduled to be arraigned on Tuesday. CNN was unable to reach the Trejo family on Monday. It wasn't immediately clear if he had an attorney.

St. Joseph County Metro Homicide Unit Assistant Commander Lt. Alex Arendt told reporters that the Rouhselang family had contacted the Mishawaka Police Department about 4:30 a.m. Sunday to report her missing after last seeing her at home around midnight.

"Upon their arrival and a search of the area they found evidence of a possible violent crime," Arendt said.

Police later found her body in a dumpster behind a business, Arendt said. A black plastic bag had been placed over her head and upper torso, according to court papers.

Trejo initially told police he contacted Breana for the first time in months to see how she was coping with the pregnancy. She had agreed to meet him, but he told police she wasn't at home when he went there, according to the affidavit.

In his confession, he told authorities he decided to use a knife, which he brought from his home, "because he thought it would kill Breana quickly," according to court papers.

Community offers condolences

CNN affiliate WNDU reported that Breana had been a cheerleader and softball player at Mishawaka High School. WNDU said her body was found behind Pasquale Rulli's restaurant.

"Our condolences to the families involved in the tragedy that took place by our restaurant overnight. The Rulli family are upset that this took place in our neighborhood and are saddened for our Mishawaka city," read a statement from the restaurant on Facebook.

Mishawaka High School released a statement Sunday afternoon on Rouhselang's death, saying it was a terrible tragedy.

"Our thoughts and prayers are with the family members and friends who have been affected by this great loss. Our focus now is to offer all of the support possible to our staff and students," the school said.

Copyright 2018 Meredith Corporation. All rights reserved. 

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(15) comments

ObeyLaws

What part of "no whiny nonsense" did so many of you fail to comprehend?? Good grief.

Careman

Just watch, someone will marry him whiles he's doing life.

Careman

I get tired of following the news of the weirdo's. Around here is enough.

Wazoolie

Hope he enjoys being a sex toy in prison

ObeyLaws

If we made abortion more socially accepted and stop trying to outlaw it, we wouldn't see these types of stories. (And please no whiny nonsense about 'killing' a fetus - it's not the same thing.)

Taj1367

She didn't want a abortion she wanted the baby and abortion is legal in Indiana so I don't understand your point other then trying to start a argument about abortion.

ObeyLaws

Taj - Likely had she not been persuaded by public opinion, religion, etc. she would have realized that abortion was the sensible choice for a 17 year old child and she would be alive today. Too many people get caught up in ridiculous reasons for NOT having abortions and as a result SEVERAL lives get ruined foolishly.

Tuishimi

Please explain how ending a potential life is sensible? Oh noes, SEVERAL lives get ruined how? Because someone has a baby?

Tuishimi

You are right, it isn't the same. A fetus is completely helpless... adults can at least defend themselves.

ObeyLaws

shimi - Yours are the 'emotional' arguments I referenced. If you think a little deeper PAST the emotions, you will realize that ending a "potential life" is much, much less ruinous than burdening a 17 year old child with her own child the rest of her life. What kind of future would her and that child have? I know it's not very popular in this country right now, but people need to start thinking beyond their 'feelings' and realize the real world impact that unwanted children have on many, many people. Ending a life before it consciously begins is quite justifiable - when you consider FACTS instead of EMOTIONS.

JustinP

So it's ok to end your life obeylaws if I can justify it?!?! That is what you are saying. How about, TAKE RESPONSIBILITY for your sex urges. And there are PLENTY of people waiting to adopt babies in the US. Just don't do drugs while you are pregnant.

Dean

Why is it "emotional" to murder an unborn baby yet when he is a day old it is then murder?

Tuishimi

Should also add that if it were socially acceptable to have abortions, why wouldn't it be more socially acceptable to commit murder on a whim as he did. Did he consider her? Did he consider the child? No. He only cared about himself and that is pretty much how the majority of people swing these days.

Dean

He murdered two people. When a baby is killed before birth it is murder. You are the one with the "whiny nonsense" when you approve of murder. Abortion is acceptable only to save the life of the mother, otherwise there are millions of people wanting to adopt. My wife and I wanted more but thanks to abortion idiots we could have no more.

Dean

You socialists have already made abortion "socially" acceptable, however it will never be morally acceptable. Morality exceeds socialism by an unlimited amount.

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