Small invited Johnson to his place in order to kill Johnson, who suspected the trap, because Johnson was convicted of Colin Small's crimes, part of a mixup of names in 1997 with Johnson had the alias name, Thomas Small. Both were in the Bloods gang. Johnson (called Thomas Small) was expected to take the rap for Colin, as a requirement set by the Bloods, or the other Bloods would get him in prison. So he took the rap. Colin Small wanted to kill Johnson (before Johnson killed Small), inviting him to his/Colin's apartment in order to shoot Johnson as an intruder, around 4 am that morning. Johnson took the gun from Small and killed him. Some of the info, here: https://www.nytimes.com/2024/03/07/nyregion/sheldon-johnson-queens-defenders-murder.html