Running last in most polls, Republican Assemblyman Chuck DeVore says he knows what would allow him to win California's GOP Senate primary: a murder-suicide pact. His thinking goes like this: In the final days of the campaign, former businesswoman Carly Fiorina uses her advertising to beat up on frontrunner former Rep. Tom Campbell - that would be the murder - and then Fiorina pays the price with voters for going negative - that would be the suicide.