Teen was 'planning and thinking' to kill mother of his unborn child, per affidavit

Breana Rouhselang // Photo courtesy of Mishawaka High School

A gruesome crime is sending shockwaves through the Mishawaka community.

16-year-old Aaron Trejo is accused of killing 17-year-old Breana Rouhselang and their unborn child and then tossing her body in a dumpster behind Rulli's restaurant, near the intersection of Battell and Division streets.

Trejo is charged as an adult with murder and feticide. She was six months pregnant.

Court documents, received late Monday afternoon, are giving us a better idea of what led up to this crime.

They provide insight into what investigators found at the crime scene and why police say Trejo wanted to kill the mother of his unborn child.

The crime scene tape is gone. All that’s left is a teddy bear and some flowers.

"I just wanted to bring a little bit of beauty back to sort of a darker space right now," said Christina Clark, area resident.

She brought flowers, trying to come to grips with what happened in the alley.

Rouhselang was last seen late Saturday night.

Her mother told investigators she was meeting up with the father of her unborn child, Trejo.

It was the last time she would see her daughter alive.

A few hours later, police were at Aaron Trejo's door.

Police say they found bloody pieces of Breana's clothing in an alley, and that Trejo later told investigators he stabbed her in the heart, put her in a plastic bag and took her body down to the alley.

Investigators say Trejo then took her body wrapped in that plastic bag and put it in a dumpster.

In an effort to cover his tracks, police say Trejo threw her cellphone and the murder weapon in the river.

Police later recovered her body out of that dumpster and immediately questioned Trejo.

According to court documents, the two were having a fight because Trejo was upset he didn’t know about the pregnancy sooner. He told investigators it was too late to have an abortion.

When asked what he did, he replied:

I took action. I took her life.

He told investigators he brought the knife and garbage bag from home and said he "had been planning and thinking about killing Breana and the baby for about a week.”

An autopsy confirmed Breana died from multiple stab wounds. Investigators also discovered that she had been strangled with a scarf.

“It’s a terrible thing that happened in this neighborhood to someone who was very, very bright,” said Clark.

Trejo will be in court Tuesday. He could face up to 85 years for both of the charges he's facing.

Right now, he's being held in the St. Joseph County Jail without bail.

You can read probable cause documents below:

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