Until recently, San Francisco Gotera prison in El Salvador was a gang prison, dedicated to holding members of the notorious MS-13 and 18th Street gangs. In 2017, nearly all the inmates inside San Francisco Gotera withdrew from their gangs and converted to Christianity. Evangelical churches came to control every part of the prison, except for one: a small isolation block where nine former gang members have chosen to live, locked in around the clock, because they are openly gay. Latino USA speaks to filmmakers Marlén Viñayo and Carlos Martinez about their award-winning documentary, Unforgivable, which documents life inside that isolation cell.