Third Watch (1999)

S5E11 A Call for Help

Bosco and Monroe follow up on an anonymous tip about someone crying for help and discover a man bleeding in an alley. As they question him, his inconsistent story raises their suspicions further, especially when they uncover a trail of blood leading away from him. Analyzing the scene, they realize the blood loss could easily indicate a serious injury or even a murder. Bosco becomes convinced that the man may have killed someone and is now injured from a struggle with the victim.