^Reminds me of CSI:NY a few months ago, where a man with a chain saw terrorized a sidewalk full of people, then cut down a tree that a bike was chained to and stole the bike. The plot then completely disregarded the guy with the chainsaw because the case was about the bike owner who (IIRC) got killed because he couldn't escape the guy that was chasing him without his bike.
I spent the whole episode screaming WHAT ABOUT THE GUY WITH THE CHAINSAW? WASN'T THAT A CRIME?!?!