By David Schwartz PHOENIX (Reuters) - The foreman of an Arizona jury that deadlocked over whether Jodi Arias should be put to death for murdering her ex-boyfriend believes she was mentally abused, but said on Friday that had not been enough to excuse her crime. Arias, a former waitress from California, was found guilty this month of murdering Travis Alexander, whose body was found slumped in the shower of his Phoenix-area home in June 2008. He had been stabbed 27 times, had his throat slashed and been shot in the face. ...