Cosby Dean, 88, a White/Caucasian female from Yorktown, Virginia, died on July 1, 2025. That afternoon, deputies were dispatched around 12:30 p.m. to a home in the area of Thornrose Drive and Glen Laurel Way after relatives, alarmed by the tone of a phone conversation, went to the residence for a wellness check and found the couple dead. The date of death and ages were later reflected in a joint funeral notice.
Investigators determined that her husband, William Dean, 90, shot his wife an
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