Jude Christopher Quezada, 1

Jude Christopher Quezada, a 1-year-old Latino, was found dead from asphyxiation Wednesday, Oct. 21, in the 7300 block of Neo Street in Downey, according to Los Angeles County coroner's records. 

Family members called police about 8 p.m. after they went into the apartment Hernandez shared with her boyfriend and Jude's father, Nicholas Christopher Quezada, 29, said Downey Police Lt. Mark McDaniel. 

Hernandez, who was several months pregnant, was found in the bathroom with her son. Both were in the bathtub, which was filled with water, McDaniel said. 

Coroner’s records said Hernandez died from forced drowning and Jude died from  "asphyxiation—homicide.” Hernandez’s unborn child, a boy, was discovered during her autopsy Oct. 25 and pronounced dead then, said coroner’s Assistant Chief of Investigations Ed Winters. 

Nicholas Quezada’s body was found in the bedroom,  and his death was ruled a suicide by suffocation, according to coroner’s records.

Investigators believe Quezada killed his son and girlfriend before killing himself, McDaniel said. The family had lived in the apartment for more than a year and there was a history a domestic violence calls to the residence, he said.

Contact the Homicide Report. Follow @latimeshomicide on Twitter.