Diane Simmons

Diane Simmons is a recurring character from Family Guy who later became a serial killer in the Season 9 Premiere.

History
Diane Simmons co-anchored Channel 5 News with Tom Tucker. At a press event, Diane met James Woods and they began a secretive sexual relationship. Months later, Diane turned 40, and she witnessed Tom campaigning to have her replaced with a younger female anchor, and succeeding. On top of the news that she would be out of a job in three weeks, James broke up with Diane, also because of her age.

Dejected and angered by what had occurred, Diane encountered Priscilla, and decided to use her eagerness to get into the reporting business as part of an evil revenge plot against her ex-boyfriend. The villainess paid her co-conspirator to seduce James into having a relationship with her, and once that was done, she also ordered her to convince her boyfriend to become a born-again Christian and make amends with everyone he wronged in the past.

Reveal and Death
The morning after Tom was arrested for murder, while everyone was packing and leaving, Lois approached Diane regarding Tom. When asked by Lois if she would anchor the news alone, Diane stated that it would be the case, and she showed Lois an outfit that her mother gave her for her first solo news cast. Lois wondered how Diane could prepare for such an occasion before the event, and it was at that moment that the former realized that the latter was the true villain. Diane cemented her reveal by pointing a gun at her former friend as she explained her plan and the murders in painstaking detail. With Lois now knowing everything, Diane stated she would have to kill her as well, and the latter held the former at gunpoint as she led her out of the mansion and to the edge of a nearby seaside cliff. Diane said that Lois would end up on the 6:00 news after her death, and was prepared to shoot and kill her—only to be shot herself and sent falling to her death by Stewie (unbeknownst to Lois), who stated that "If anyone's going to take that bitch down, it's going to be me."

Known Victims

 * Stephanie (accidentally shot; murdered)
 * James Woods (main intended victim; stabbed in his back with a knife; murdered)
 * Priscilla (slashed throat; murdered)
 * Muriel Goldman (stabbed in her back with a knife; murdered)
 * Derek (bludgeoned with James Woods' Golden Globe; murdered)
 * Lois Griffin (attempted to kill with a gun, only to be shot by Stewie; survived)