You are investigating the scene of a crime. the victim has been shot, what factor would indicate that it is a homicide rather than a suicide? a) damage to the bullet b) the caliber of the bullet c) bullet passed through the victim's body d) lack of gunshot residue on victim's clothing

I will assume it's D. Caliber and damage of the bullet does not matter, anyone can kill themselves with a shotgun or a .22 caliber, it does not matter, and where the bullet passed through the body or did not doesn't matter either. If someone was shot from afar, there wouldn't be any bullet residue on them.