Quoting Amelia's Mommy:" My 23yr old male cousin has been showing signs of drug abuse for about a year now. Our family is so worried ... [snip!] ... and our family is pretty close, but im upset that his mother and gmom are in denial. Im afraid he might od or something bad."
that sounds like someone coming down off of a drug. which one is hard to determine by what you wrote, anger, violence, deppression, and the need for money happens after coming down from drugs. what is his behavior like while he is using. is he speedy, slow, tired looking slurred speech manic?