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Just before 9 p.m. on Sept. 24, 1973, 18-year-old Becky Thomson was leaving to buy groceries and asked her 11-year-old half-sister, Amy Burridge, if she wanted to tag along.

The two drove in Becky’s Ford station wagon to the Thriftway store on 12th and Melrose streets in Casper.

When Becky and Amy emerged from the store, one of the car’s tires was flat. Unbeknownst to the sisters, the two men who had cut the tire, Jerry Jenkins and Ronald Kennedy, were the same guys who pulled into the parking spot next to them. The men offered to help.

After a short ruse about changing the tire, the drunken men abducted the sisters and began their drive. First to Casper Mountain, then toward Alcova Lake as Sept. 24 turned into Sept. 25. Jenkins, the greasy fat one, drove and Kennedy, the crazy-eyed one, beat and terrorized the sisters from the front passenger seat.

Jenkins and Kennedy said the four were going to see a man who would determine the girls’ fate. Becky and Amy were told that a car hit the man a few days earlier and it looked identical to the one Becky was driving.

There was no third man, let alone anyone else, around when Jenkins pulled over next to the Fremont Canyon Bridge out by Alcova, about 36 miles southwest of Casper. Amy was removed from the vehicle first.