A series of tweets on Demi Moore’s twitter feed help saved a 47-year-old San Jose, California woman’s life, according to reports. One of the hundreds of thousands of followings of Demi Moore’s Twitter stream, mrskutcher, sandieguy, wrote a message to Moore early Friday morning. “Getting a knife, a big one that is sharp. Going to cut my arm down the whole arm so it doesn’t waste time.”Followed a few seconds later by: “gbye … gonna kill myself now.” Later that morning, the message was retweeted to Moore’s Twitter