Bossie was a minor character from Season 11 of The Walking Dead. He was a member of the Reapers, a group of mercenaries that had formed into a militant cult during the apocalypse.
When Maggie Rhee led a group of survivors from Alexandria to Meridian in order to acquire food, the Reapers attacked them. During the fight, Bossie was wounded across his back by Alden. After witnessing his comrade Turner go down, Bossie tried to help him, carrying him back to the Reapers' base camp a full ten miles away on his back. Turner died before Bossie made it back and was visibly distraught by his comrade's death, weeping over him once he returned.
Later on, after Daryl Dixon had been initiated into the group, Pope told Daryl about what Bossie had done. However, he also noticed that Bossie had wounds on his back, believing that he had been struck whilst running away from the enemy. Pope made a speech about how the Reapers had been baptized by fire, but that fire also served as God's wrath. Pope then grabbed Bossie and threw him into the campfire, putting his boot down on him to hold him in place as he burned to death while the others watched.