Malik Williams is a pimp who used both his mother Lashonda and teenage sister Tiana as prostitutes, which resulted in Tiana being raped.
When Tiana is raped, the Special Victims Unit are called in to investigate. Malik tells the officers that Tiana was raped by three young boys. However, the detectives soon discover that Malik is actually a pimp who is partly the reason his sister got raped. It is also discovered that his father constantly raped his mother when he was a boy, and also physically abused Malik. He eventually makes a deal with Stone and is sentenced to fifteen years imprisonment. (SVU: "Guardian")