To Abruzzi, it doesn't matter if Veronica is a "good person." Morality is a luxury he cannot afford. From his perspective, she is a guided missile heading toward his empire. The fact that she is innocent is irrelevant. In the mob, you don't wait for the hammer to fall; you shoot the hand holding it. In the end, Abruzzi’s desire to kill Veronica is the show’s great tragic irony. He orders the hit to protect his escape and silence the truth. But it is precisely that act—the brutality of sending a hitman to her apartment—that forces Michael to accelerate the escape, cut corners, and eventually turn against Abruzzi.
But then, the plot pivots. Michael offers Abruzzi a plane to freedom in exchange for that access. Abruzzi agrees. So why, halfway through Season 1, does Abruzzi order a hit on Veronica Donovan, Michael’s loyal lawyer and Lincoln Burrows’ childhood friend? why does abruzzi want veronica
The hit on Veronica is an extension of that test. Abruzzi wants to see Michael break. He wants to see if Michael will abandon his moral crusade to save his brother when the collateral damage hits home. By putting Veronica in the crosshairs, Abruzzi is asking Michael: "How far are you really willing to go? Are you willing to let your brother’s champion die so you can get out of here?" To Abruzzi, it doesn't matter if Veronica is a "good person
Abruzzi misjudges two things: Veronica’s resilience (she survives) and Michael’s genius (he finds another way into the infirmary via the guards). In the mob, you don't wait for the
Abruzzi is a pragmatist. He has spent decades in a system where hope gets you killed. He does not believe Veronica will succeed. But he fears the attempt . Why? Because if Veronica gets too close to the truth, the shadowy organization that actually framed Lincoln (The Company) will panic. Abruzzi, while powerful, is a subcontractor for The Company in this matter. If Veronica creates a legal earthquake, The Company might cut ties, or worse, eliminate Abruzzi to clean house.
When Abruzzi learns that Veronica is talking to Fibonacci (via Nick Savrinn), it triggers a visceral, PTSD-like response. This isn't business anymore. This is personal. Fibonacci is the ghost that haunts Abruzzi’s cell. Every time Abruzzi looks in the mirror, he sees the man who almost killed him. The idea that Fibonacci might be "courted" by a lawyer—a pretty, respectable, civilian lawyer—is an insult so deep that Abruzzi cannot process it rationally. He doesn't just want Fibonacci dead; he wants to erase any possibility of Fibonacci having a voice. Veronica is that voice. Cutting off the voice is the only logical mob solution. This is the subtlest motive. Abruzzi is a predator testing his prey. Early in Season 1, Michael manipulates Abruzzi by promising the plane location, then pulling it away. Abruzzi responds by cutting off Michael’s toes (a horrifying scene).