I'm bored. anyone got any murder problems to work on? example given?

a man was killed in his car with two gunshot wounds, both from a pistol. there were no passengers in the car with him. all the doors were locked, the windows were up, and there were no bullet piercings in the window. there are no powder burns in the car, though a gun was found in the glove compartment. the most obvious explanation is that he was driving in a convertible, and the murderer shot him from outside the car. the gun in the glove compartment was just a coincidence, as the man had a concealed weapons permit. this clearly wouldn't have been a suicide, because there are no burns in the car, nor on the body. case solved. this is an example, of course, and a very easy one. anyone have any clever ones that might make my day? getting a bit bored over here.