Riley Anderson

Riley Anderson was a man who, before the events of the episode Salvation, died of the mysterious disease malaria. In reality, Anderson was part of a medical experiment involving to find a cure for this triggering disease. After he was cured (and presumbaly dead by family and friends), he came back from the dead and was reunited with his friends and family. However, not soon after, he killed friends and family in so called little accidents, like a vice falling on someone his head.

After he killed his mother and his girlfriend, he almost killed his best friend, but was prevented from doing so, but he escaped to New York City where he arrived at Empire State Building and jumped from the roof and was killed as soon as he hit the ground. It was, before his death, revealed that the cure caused personality problems revealing his killing accidents and he probably committed suicide because he could not live with his new personality.