Austrian man fire bombs his in-laws

A 48-year-old Austrian man used a homemade firebomb to kill his wife's elderly parents, and then tried to commit suicide by stabbing himself in the stomach.  The guy apparently spread gasoline in the room of his 84-year-old in-laws and then lit a homemade propane gas bottle and threw it at them, burning them alive.  Nice.  His mother-in-law had diabetes, and her legs had been amputated, so she was unable to flee and died in her bed.  The father-in-law made it out, but died soon afterward---police found his body on a garden bench near the family's apartment.  Police don't know the man's motive.  How about this: he's a nut bag.  [CNN]