SAN DIEGO -- A man accused of hacking his parents to death in their Carlsbad home and fleeing to Mexico, where he was captured about six weeks later, is not mentally competent to stand trial, a judge ruled Wednesday.

Dennis Gluck, 44, will be sent to Patton State Hospital for up to three years or until he regains his competency, authorities said.

After reviewing a doctor's report, Judge Frederick Maguire suspended criminal proceedings against Gluck and ordered that he be sent to the state mental hospital for treatment.

Gluck had a history of "aggressive" behavior toward his parents, but none recently while he lived with them, police said.

He is charged with two counts of murder, a knife use allegation and a special circumstance allegation of multiple murders, which could lead to the death penalty.

Carlsbad police found the bodies of 90-year-old Harry Gluck and his 78-year-old wife, Jean, in a bedroom of their home on Jan. 18.

Both victims died of "chop" wounds to their upper bodies, inflicted by a bladed instrument of some kind.

Dennis Gluck was apprehended by Mexican police on a bus near Ensenada on Feb. 26 and turned over to U.S. authorities.

Carlsbad police Lt. Kelly Cain said Gluck had assaulted people before with "edged weapons" and was arrested several years ago for attacking someone with a machete at a homeless camp in Oceanside.