Originally Posted by TheSquealer

He specifically bought watermelon iced tea and skittles - which are mixed together with Robitussin. It wasn't just "something to drink because a cute little boy was thirsty".

http://en.wikipedia.org/wiki/Purple_drank

It was in his system and the autopsy report showed prolonged use
He was putting out messages on facebook asking if anyone had Robitussin etc etc