The death of a young Philadelphia boy has been ruled a homicide.
Three-year-old Jason Larkin was found dead Saturday morning shortly after 3 a.m. on the 4200 block of Houghton Street in Roxborough.
Police have charged 27-year-old Joseph Zysk with Jason's murder.
Zysk is the boyfriend of Jason's mother. He was reportedly the one who alerted police of Jason's death.
Investigators say that Jason died of multiple blunt impact injuries.
Zysk is charged with murder, involuntary manslaughter and endangering the welfare of a child.