The Last Lullaby by Albert Christian Limbong

Danny "The Beak" Siccero, notorious underboss of the Alberto Limbong crime family, betrays his own boss to become an FBI witness. Held under maximum‑security at the 122nd Precinct, he must survive 48 hours until the grand jury testimony. But with corrupt cops on the payroll and a million‑dollar hit‑order already placed, every shadow hides a knife. Reporter Elizabeth Chen covers the siege as the precinct turns into a fortress and a deadly trap. One wrong move and Danny's testimony dies with him.