Carolyn Bigsby (Laurie Metcalf) is Orson's former neighbor. Before his move to Wisteria Lane, Carolyn had found Orson thoroughly cleaning his house, and upon learning his wife, Alma, was missing, began to suspect him of Alma's murder. By the time Orson moves to Wisteria Lane, Carolyn's suspicion has become an obsession, and she tries in vain to warn Bree several times. Bree reaches her limit with Carolyn and retaliates by revealing the affair between Monique Polier and Carolyn's husband Harvey Bigsby (Brian Kerwin). This results in Carolyn going to Harvey's supermarket with gun, intending to kill him. Harvey locks himself in the manager's office with Edie, and Carolyn panics and creates a hostage situation, in which Carolyn kills Nora Huntington. While Carolyn is having a discussion with Lynette, a hostage manages to retrieve a large food can from the floor behind him and throws it at Carolyn's head, and she pulls the trigger before falling to the floor and dropping the gun. Lynette is wounded in the shoulder. Carolyn attempts to retrieve the gun, but Austin struggles with her long enough for another hostage to pick up the gun and shoot Carolyn in the head, killing her instantly.