Tsu Surf was arrested earlier this month on Federal RICO changes that consist of murder, drug dealing, and robbery.
While we don't know the specific details of the murder part, the indictment against Surf says that he was selling drugs -- pills and marijuana -- on Instagram.
US Marshalls subscribed to the battle rapper's social media channels, watched him and listened to him, and documented everything.
The Feds also used his social media to locate him when it was time to swoop in and make an arrest.
The indictment goes back to 2015, meaning the Feds have a whole lot of info on Surf and all those he dealt with.
The 32-year-old is currently in Essex County Jail in Newark, N.J.
Crime
Report: Diddy Throwing "Tantrums" Because He Is No Longer Most Famous In jail / Crime
Crime
Court Reviewing Warrant For Nicki Minaj's Arrest / Crime
Crime
Gunna? Young Thug Makes His Feelings On Rats Clear / Crime
Crime
YNW Melly Got New Hair and Another Delayed trial / Crime
Crime
Gunna's Lawyer Steve Sadow Addresses Young Thug's Snitching Allegations / Crime
Crime
Drake Suggests His Enemies Are Going to Prisons / Crime
Report: Diddy Throwing "Tantrums" Because He Is No Longer Most Famous In jail / Crime
Crime
Court Reviewing Warrant For Nicki Minaj's Arrest / Crime
Crime
Gunna? Young Thug Makes His Feelings On Rats Clear / Crime
Crime
YNW Melly Got New Hair and Another Delayed trial / Crime
Crime
Gunna's Lawyer Steve Sadow Addresses Young Thug's Snitching Allegations / Crime
Crime
Drake Suggests His Enemies Are Going to Prisons / Crime