1. Sylvia Seegrist When a deranged mind of a Deadly Women snaps, there’s no telling when the killing will stop. -Twisted Minds, Deadly Women (S2, E3) Date: October 30, 1985 Victims: Recife Cosmen, 2, Ernest Trout, 67, and Augusto Ferrara, 64 (she also injured 7 others in the shooting incident) Location: Springfield Mall, Philadelphia, Pennsylvania Circumstances: … More Deadly Women Premiered ‘Twisted Minds’ on Investigation Discovery: Sylvia Seegrist, Christina Riggs, and Bobbie Sue Dudley Terrell (October 23, 2008)