This happened about a month ago, in a London prison, United Kingdom. TG Millian who was a rapper and affiliated with the Gang, Harlem Spartans, was in jail for attempted murder.
For some reason, he moved from HM Prison Thameside to HM Prison Wandsworth which is a "no-go" as the prison is full of his rival gang members.
He was spotted by a rival gang - we're not sure which one it is - possibly the "410" gang or the "150" gang, but the guy’s name that was beating TG Millian is called Burner.
Here is dude's music: