Thicker Than Water

Summary

During the investigation of the gang shootout, the police officers are questioned and presented with evidence that suggests that Ross was killed by friendly fire; Carlos learns that Vangie is dead and that he is the father of the baby her sister leaves at the firehouse; on the first anniversary of Bobby's death, Kim quarrels with Jimmy over her visitation with Joey and confronts a female gang during a call; and Doc is visited by the father of a former patient whose debilitating injury may have been caused by Doc's error during treatment.

Guest stars

• Anika Noni Rose as Monay
• Chris Bauer as Fred Yokas
• Nicole Leach as Regina
• Leslie Hendrix as Anne McCambly
• Darien Sills-Evans as Dr. Fields
• Bill Walsh as Walsh
• James Rebhorn as Captain Elchisak
• Amy Hargreaves as Haley Sundstrom
• Derek Kelly as D.K.
• John Michael Bolger as Lieutenant Johnson