What to Know Marisol Ortiz, 51, and her son, Alanche Delorbe, were found dead in their Bronx home Sunday

Authorities said that Ortiz was hit multiple times with a gym weight and stabbed in the head; her son was found strangled dead in bed

The suspect, Ortiz's boyfriend, was found dead Sunday of apparent suicide by train at a Metro-North station

A mother and her 14-year-old son were found dead inside a Bronx apartment on Sunday, and the man suspected of killing them was found dead of an apparent suicide by train at a Metro-North station in Westchester, police said.

Marisol Ortiz, 51, and her son, Alanche Delorbe, were found in their home on 185th Street in the Belmont neighborhood shortly after 5:30 p.m., the NYPD said. Both were pronounced dead at the scene.

Ortiz owned a business and didn't show up for work on Sunday, police said. A person from the store called police to check on her.

Authorities said that Ortiz was hit multiple times with a gym weight and stabbed in the head. When police arrived on scene, they also found torn up cash on her body.

Delorbe, meanwhile, was found strangled in bed, according to police.

A neighbor told NBC 4 New York that he heard screaming around 1 a.m. or 2 a.m. but thought it was from a party.

Detectives had been searching for the woman's boyfriend in what are believed to be domestic violence homicides. By Monday, they confirmed that a man struck and killed by a Metro-North train at the Hartsdale station Sunday morning was the suspect, 51-year-old Hector Cruz.

Sources told News 4 that Cruz had previous convictions for assault.

Delorbe's 15th birthday was supposed to be on Monday, and grieving classmates came to his apartment building to pay their respects. A baseball fan, Delorbe dreamed of play for the New York Yankees. His father, in his native Dominican Republic, has been informed of his son's death.

Neighbor Mari Rosa described him as a well-mannered young man, sweet and always respectful.

"He didn't even get to learn how to drive," she said in Spanish. "It breaks my heart."

Anyone with information should call Crime Stoppers at 1-800-577-TIPS.