TORONTO - Autopsies on two Toronto homicide victims show Demetrios Zois, 14, was stabbed in the chest and neck and his sister Iliada Zois, 22, died from knife wounds to the chest.

The siblings' Christmas Day slayings were brought to police attention after their brother Tommy Zois, 16, stumbled into a police station on Boxing Day evening and told police of the slaying in a nearby high-rise apartment.

Tommy Zois was bound and gagged in a closet after the killings and was able to break free.

Last Thursday, officers arrested Iliada Zois's husband after a man phoned police.

Nana Yaw, 27, is charged with two counts of first-degree murder plus one count of attempted murder and forcible confinement.

Yaw, who was treated for stab wounds to his stomach, is due for a video remand court appearance on Jan. 11.