Indiana teen arrested in death of pregnant schoolmate

MISHAWAKA, Ind. -- (WXIN/AP) -- A 16-year-old northern Indiana boy has been arrested in the killing of a 17-year-old pregnant schoolmate whose body was found in a restaurant dumpster, authorities said.

Lt. Alex Arendt of the St. Joseph County Metro Homicide Unit said Aaron Trejo, who is on the Mishawaka High School football team, was arrested Sunday. The St. Joseph County prosecutor's office said he's facing a murder charge and will be tried as an adult.

Breana Rouhselang was last seen at her home at around midnight Saturday. Her family called police about 4:30 a.m. Sunday after they “got the feeling that something wasn't right,” Arendt said. He said she knew the boy from the football team, but the extent of the relationship was under investigation.

Breana had been a softball coach, a cheerleader and football team manager at the school, the girl's stepmother, Nicole Rouhselang, told reporters Sunday. She said her stepdaughter had been about six months pregnant.

“I've known her since she was 6,” she said. “I just don't understand it.”

Police haven't released details about a possible motive. An autopsy was planned to determine cause of death.