molly hennessey-fiske , los angeles times reporter , received letter .
messages supposedly sent from durst at louisiana prison .
murder suspect discusses his time in la and the problems of traffic .
durst blames ` politicos and business leaders ' for city 's lack of pro football .
lawyer says it looks like his client 's handwriting , but it is different from ` cadaver ' letter after murder of susan berman , of which durst is accused .