In March 2012 a homeless man flagged down a police officer and told him a child was being molested in a nearby home. 

The man said he'd been to the home before to use drugs and had seen several men having sex with the child.

He said the abuse had been ongoing for about two years and he had witnessed Nicholas use drugs. 

The man also said he was present once when Nicholas accepted $20 from a man and told her daughter to get naked and lay on a living room mattress so the man could have oral sex with her, police said.

The witness, according to police, said the girl had confided in him that she was being sexually abused and asked him to 'help her make it stop'.