Well, people are often convicted based on circumstantial evidence. That's why there is a jury, to weigh the available evidence. Personally, I wouldn't give this guy any help based on what I've read, and certainly not without reading the entire record of each trial. Also, the prosecutor should have definitely sought a lower charge of manslaughter after the 2nd hung jury.

http://www.thefreelibrary.com/TESTIMONY+IN+2000+SLAYING+CO-W...

Edit: added the following

Yeah, down-voting doesn't invalidate my my feelings on the matter, and looking at the appelate court's decision to uphold the verdict [1] just affirms that I would need a whole lot more convincing this guy is innocent.

[1] http://www.leagle.com/decision/In%20CACO%2020111219009/PEOPL...