The Negotiator

Lieutenant Danny Roman, a top hostage negotiator for the Chicago Police Department's east precinct, is told by his partner, Nate Roenick, that according to an informant whom he refuses to name, members of their own unit are embezzling large amounts of money from the department's disability fund, for which Roman is a board member. Roenick tells Roman that his informant hasn't told Internal Affairs because he thinks they might be involved as well. When Roman goes for another meeting, he finds Roenick dead seconds before other police arrive, pinning the latter as the prime suspect.