Williams: Addiction 'lay in wait'

Addiction seemed to stalk Robin Williams, taunting him when he least expected it.

“It waits,” he told Good Morning America in 2006. “It lays in wait for the time when you think, ’It’s fine now, I’m OK’. Then, the next thing you know, it’s not OK. Then you realise, ’Where am I? I didn’t realise I was in Cleveland.”’