By killing Veronica, Abruzzi isn't sabotaging Michael’s plan; he is protecting it. He is removing the variable of a legal miracle. If Veronica is dead, the appeal dies. If the appeal dies, Lincoln is executed. If Lincoln is executed, Michael stops digging tunnels and focuses solely on the escape. Abruzzi gets his plane. It is a brutal calculus: One dead lawyer equals one living mob boss. To understand Abruzzi’s rage, you have to remember the physical evidence. When Fibonacci turned state’s evidence, he didn’t just put Abruzzi in prison; he shot him. We see the scar on Abruzzi’s neck. That scar is a daily reminder of betrayal.
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?" why does abruzzi want veronica
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). If the appeal dies, Lincoln is executed
Abruzzi misjudges two things: Veronica’s resilience (she survives) and Michael’s genius (he finds another way into the infirmary via the guards). It is a brutal calculus: One dead lawyer