Were Paris Hilton and Stavros Niarchros under the influence when they had that recent car crash?

According to MSNBC,“Wild Boy” Steve-O claims that he gave the partying pair “some mind-altering substances” shortly before the November fender bender. “About a half hour before Paris Hilton had that car crash, I may have given her some mind-altering substances,” Steve-O blurted out on Jimmy Kimmel live last week. He also said that prior to the accident he had met Hilton and Niarchos at a night club and provided them with nitrous-filled balloons. “I probably shouldn’t say that,” Steve-O said and added, “Whoops!

Source: ONTD and MSNBC