Gloria Korzon, 37, was last seen leaving her job at an electronics plant in Horsham, Pennsylvania, on March 6, 1981. She never made it home to the Warrington house she shared with her husband, William Korzon. Gloria left behind all her personal effects, including her car, dog, identification, and credit cards.

Her family grew worried after failed phone calls and a Mother’s Day card signed Gloria Korzon that did not match her handwriting; Gloria never used her full name when writing family. A sealed three-page letter Gloria gave to her stepfather a month before she vanished detailed repeated, severe assaults by William. Police records show law enforcement responded to the couple’s home multiple times in the late 1970s, and Gloria had twice sought protection orders but withdrew them.

Decades later a cold case review led to William’s arrest and a 2019 guilty plea to voluntary manslaughter; Gloria’s remains have not been recovered. Did anyone in the Horsham or Warrington area know Gloria’s routines or notice anything unusual in March 1981?