Research terms: self inflicted stab wound, accidental vs self inflicted wound/injury
Everything that came up in my search was self-inflicted vs assault-inflicted stab wound. I couldn't find anything that detailed the characteristics of accidental stab wounds vs self-inflicted, except that someone who stabs himself in the gut usually moves his shirt aside before he does it. This guy will not be doing that; he stabs right through his shirt.
A couple of things that could muddy the waters: One of the friends who is there when this all goes down will have some red irritation marks on his wrists because he has spent the last 2-3 days handcuffed to a piece of furniture. Also, this is a Real Person Fic; the 45 year old had a heroin problem in the late '90s and overdosed in 2001. As far as anyone knows, he hasn't touched heroin since then, but because he's famous, the medical personnel would be able to find out this happened with a few simple Google searches. Would these factors make the doctors and nurses suspicious that something hinky went on here?
Basically, I want to know if there's something about accidental vs self-inflicted stab wounds that would give away their lie.