Unforgotten
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Parts of a body are found. The team believes the remains have been stored for a long time. After deciding to retire, Cassie learns she must complete 30 years of service to receive her pension.
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Cassie and Sunny identify four potential suspects who trained as police officers. They have no luck finding the rest of the body and decide to go public with the discovery of Walsh's remains.
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Cassie and Sunny interview the four suspects, who all deny knowing the victim. Boulting discovers Walsh was cautioned three weeks before his death. Collier finds the rest of Walsh's body.
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