Apparently Facebook isn’t just for chatting it up with old pals or initiating a discussion about the latest Monet art exhibit.
ATF is investigating allegations that a Virginia inmate used Facebook to threaten government witnesses in his upcoming arson case, station WSLS reported. 
The station, citing a federal search warrant for his cell, said investigators were trying to determine if inmate John Conner Jr. contacted his girlfriend via phone and mail and had her contact witnesses in his upcoming trial through his Facebook account.
Conner, an inmate serving a six year sentence at the Western Virginia Regional Jail in Salem, Va., is awaiting trial in April on federal charges that he set his ex-girlfriend’s duplex on fire on Nov. 15, 2008 when they were still together, WSLS reported.
The station reported that he set the fire after his girlfriend spit in his face during a spat.