The man who allegedly shot and killed three of his relatives in Queens early Saturday morning is dead. 

Investigators say 34-year-old Jonathon Walker shot his mother-in-law, common law wife and their two daughters.

Sixty-two-year-old Viola Warren, 31-year-old Shantai Hale, and 7-year-old Kayla Walker were found dead inside a Queens home on 148th Avenue in Rosedale shortly after 5:30 a.m. Saturday.

Authorities say he also shot his 12-year-old daughter Kristina Walker in the head—but she was able to call police. 

She was taken to Long Island Jewish Hospital where she underwent surgery and is in critical but stable condition.

"Part of our investigation we have found that a family member of Jonathon Walker who lives out of state received a phone call from him about 6 o' clock in the morning and basically he states to his brother 'what I did I cannot come back from' and there's a short conversation thereafter. He is then, phone goes dead and our investigation into that begins as well," said NYPD Chief of Detectives Robert Boyce.

Family members visited the home all day Saturday.

They say they can't make sense of why Walker shot them, but say they're going to support his daughter while she recovers.