Feds seek 4th suspect in sex trafficking, prostitution ring:

The FBI, the IRS and the Anchorage, Alaska police department have busted a major prostitution and trafficking ring that has operated on craigslist since 2006.

Authorities have arrested Sabil Mumin Mujahid, Sidney Lamar Greene, and Rand Hooks while Keyana "Koko" Marshall (pictured) remains at large.

The quartet are accused of prostituting at least 50 women with at least 3 underage girls. They are also accused of identity theft and tax fraud because they would get the personal information of their victims and use it to file tax returns and collect the money. Sounds like a lot of victims in a victimless crime.

Not to mention the fact that this went on craigslist for 3 years with it never being flagged. Go figure.