So I am re-watching this series. In the episode "Isabella", Donnie Paduana is contracted by Junior's crew, specifically Mikey Palmice and Chucky Signore, to kill Tony. He in turn hires two black guys (or, per Paulie, the "Jamaican Bobsled Team with cap guns") to hit Tony. In one scene, Christopher blocks off the would be assassins from getting out of their car and killing Tony.

In a later scene, after Donnie apologies to Mikey Palmice for the hit not going through, Mikey kills Donnie at Junior's behest for Donnie's perceived "mouthy" remark about Olivia wanting Tony popped.

My question is, as at this point in the episode Tony has not been killed, and as Donnie is dead, wouldn't the would be assassins have second thoughts about going through with the hit? It is likely they would be in regular communication with Donnie. Wouldn't they have had second thoughts if they couldn't get a-hold of Donnie or if they had gotten word he was wacked?

Plot hole?

Thoughts?