The Monroe County Sheriff’s Office arrested a member of an outlaw motorcycle gang Monday who’s accused of soliciting sex from a 14-year-old girl. But, the person 43-year-old Derek Marshall Queen was actually speaking with online was an undercover detective, according to the sheriff’s office.

Queen, who has a long arrest history in the Keys, propositioned the person he thought was the teen for sex, repeatedly acknowledging he thought she was underage and sent “multiple” images of himself exposed and masturbating, according to the sheriff’s office. He is a Key West member of the outlaw Pagan motorcycle gang. . “The investigation of crimes against children is a top priority for me,” Sheriff Rick Ramsay said in a statement, “whether by individuals or groups, and I will not allow them to prey on the most vulnerable among us.”