Former NFL player Jonathan Martin turned himself in after posting a photo online of a gun with the message, "When you're a bully victim & a coward, your options are suicide, or revenge." He also tagged his former Dolphins teammate Richie Incognito, San Diego Chargers' Mike Pouncey, and 2 of his old high school teammates at Harvard Westlake

Martin pled guilty after being charged with 4 counts of making criminal threats and 1 misdemeanor for carrying a loaded firearm in a vehicle. He's facing 6 years if convicted.

Source: tmz.com