I could go on about this for a few days, but won't because I want to spare you, and I still probably wouldn't make much sense. But the big one is the drama.
Murder is dramatic.
It's more sensational that stubbing your toe, and bound to be more emotional on some level than simple shoplifting. Contrary to the current crop of true crime paperbacks, murder is inherently interesting. You ask a question like insisting a mother select her favorite child. It's hard to say-it changes depending on whatever I'm reading. Bundy and Gacy were quite interesting fellows in their ability to get away with it, and you have to hand it to weirdo Ed Hickman.