Very powerful scene.
In real life, Tommy wasnt dispatched that quickly. Rumor is that they (the gotti crew) tortured him for a few days or so before finally killing him.
For quite a while, the gambino family had been well aware of Tommy’s transgressions against them. Namely murdering their 2 made guys without permission. Billy Batts and Ronald “Foxy” Jerothe.
The gambino family had been putting pressure on Paulie and the Luchesee family to let them have Tommy, or else. They had to give up Tommy or they were in a lot of trouble, possibly facing a war. So, Tommy had to go.
They lured Tommy to his killers by promising that he was going to get made. When he arrived, he was surprised to find the Gotti crew sitting there. Bwcause the Gotti crew belonged to the Gambino family, they werent supposed to be in attendance of a making ceremony by the Luchesee family.
They grabbed Tommy and tortured him for days. Tommy was in so much pain, he was begging them to just kill him, which they eventually did.