Here’s a crime for you:
Five people are dead in the same room.
Each person is holding the same make and model of gun,
Fingerprints of only theirs everywhere,
Everyone dead had only one entry-exit point.
Only one of them is the killer.
Who is it?
Mark - suicidal, attending therapy for 8 years, unemployed, of small stature, about 4:8, skinny,
Antony - of good mental health according to his family, former records show that his was a wealthy weapons dealer, currently employed as a janitor for a baseball stadium, carrying drivers license in his left pocket.
Betty - a prostitute, her pocket contents contained a taser, lipstick, her ID, and a recite for two beers, of good mental health according to her friends and colleagues.
Ross - off duty cop, unarmed except for the gun mentioned earlier, very happy man, married, no other ID except his drivers license and badge
Susan - Ross’s wife, no kids, very happy lady, good mental health, no other ID than her government issued one.