On the night of Mr. Melvyn's murder, Helmut was with his friend Freddy Pom-Pom. They'd just raided a local art gallery, and were crusing downtown with a couple of very hot paintings in the trunk of their car.     Helmut didn't know the names of the paintings they'd stolen - he really didn't care either. Some guy had told Freddy to steal some paintings by Egon Schiele and Francis Bacon, and being the nice guy that he was, Freddy had graciously invited Helmut along for the ride.    He was a good friend, that Freddy.