CHESAPEAKE, Va. (WVEC) -- A person accused of killing his father and brother and seriously injuring his mother entered guilty pleas Friday.

A judge deemed Zachary Toothman competent to stand trial following an evaluation earlier this year. He was charged with First Degree Murder, Attempted Murder, and Use of a Firearm in the Commission of a Felony.

Chesapeake police officers found the bodies of Michael Toothman, a 30-year veteran of the Chesapeake Police Department, and Matthew Toothman, 17, inside the family's home in Great Bridge on August 7, 2016.

Toothman's mother, Susie, was hurt in the shooting. She survived and recovered from her injuries.

The Virginian-Pilot reported that before the shooting, Toothman had failed out of Virginia Tech's Naval ROTC program and was no longer enrolled at the university.

Tootham's sentencing is scheduled for November 20 at 9 a.m.

He faces two life sentences for the murder charges, up to 10 years for the attempted murder of his mother, and 13 years for the counts of Use of a Firearm in the Commission of a Felony.