The death of a lab technician and the abduction of 17 infected monkeys lead to a trial involving the treatment of research animals.

A 14-year-old’s shooting death involves the son of a former police detective, who’s also an old friend of Briscoe’s.

The renovation of a brownstone uncovers the remains of a boy who disappeared 31 years earlier, reviving a wrenching and long-suppressed memory in his childhood friend and neighbor.