Deshawn Harold Mitchell

Baez's estranged brother is the primary suspect in a homicide; a woman may have had a hand in her husband's death.

Danny and Baez search for teenagers who randomly punch unsuspecting people in the head.

A deranged gunman puts the State Department on lockdown; a translator threatens to reveal damaging information about Elizabeth's time in the CIA; Matt reveals information to Daisy's fiancé.

Lieutenant Gormley is attacked outside his home by a mob. Danny and Frank seek justice with help from Detective Anthony Abetemarco.

Kevin is afraid that he may be losing touch with reality, Meg loses control during an encounter with Matt, Jill confronts Aimee about her relationship with Kevin, and Nora stands up to Laurie.

Holmes and Watson search for a kidnapped woman who's been held hostage for years. Meanwhile, Watson is frustrated when Shinwell won't focus on his informant training.