Autopsies indicate that a man charged with killing three Muslim college students held his gun to the heads of two victims when he pulled the trigger after shooting the first in the doorway.

Autopsies released Wednesday say 21-year-old Yusor Mohammad Abu-Salha and her sister, 19-year-old Razan Mohammad Abu-Salha, died of contact wounds to the head, indicating the gun was very close to or against their scalps.

The older woman was shot in the top of the head. Her sister was shot in the back of the head.

Yusor Abu-Salha's husband, Deah Shaddy Barakat, died of multiple gunshot wounds.

A judge has ruled prosecutors can seek the death penalty against Craig Stephen Hicks, who's charged with murder.

Police say Hicks was motivated by a parking dispute, but the victims' families say they were targeted because they were Muslim.