. >> after surveying the crime screen, investigator chuck wheeler examines the weapon. >> it's an x-acto blade from a hobby craft box. took a little bit of time to put a couple pieces of wood together to hold it in place. this weapon will do a lot of damage. >> the suspect, michael ray stafford, is brought in for questioning. >> have a seat right there. do you want to tell me where you got the knifes from? >>> coming up -- >> oh, i'm innocent. >> investigator wheeler finds both the suspect and the victim unwilling to cooperate. >> the victim doesn't want to be labeled as a snitch. thrget 3 yearsgiving weekend, interest-free financing and save up to $600 on beautyrest and posturepedic. even get 3 years interest-free financing on serta icomfort and tempur-pedic. mattress price wars ends sunday at sleep train. >>> when you throw 200, 300 men and they're confined like that, you're going to have violence. i mean there's just no way around it. you put a dog on a short chain and taunt him long enough, he's going to bite you. you put him around 50 other dogs, they're knowing to fight. >> a vicio