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In 1982, a pipe bomb exploded in Green River, Wyoming, badly injuring a 23-year-old woman and destroying an apartment.
Stephen Craig Campbell was soon after arrested, charged with attempted first-degree murder. Then, after being released on bond, he failed to appear in court — and vanished.
For more than forty years, Campbell’s wanted poster remained on a wall at the Sweetwater County Sheriff's Department, but Campbell remained at large.
In 2025, federal investigators say they found out why.