Demi Moore saves life through Twitter.

God, I hate Twitter. From CNN:

Actress Demi Moore's frequent postings on Twitter put her in the middle of a life-and-death drama Friday when a woman sent her an online message threatening suicide.

Moore, who was in southern France where her husband, actor Ashton Kutcher, is filming a movie, quickly replied to the threat saying, "Hope you are joking."

Twitter followers who saw the message tracked it to a San Jose, California, home, where police found a 48-year-old woman. The police took her into custody for a psychological evaluation, according to a police spokesman.

About two hours after the initial exchange, Moore posted this message -- known as a "tweet" -- on Twitter: "Thanks everyone for reaching out to the San Jose PD i am told they are aware and no need to call anymore. I do not know this woman."

A San Jose police spokesman said a "concerned citizen" -- not Moore or Kutcher -- called his department at 4:37 a.m. to report seeing the threat on Twitter.

Police went to the residence that the caller provided and found the woman unharmed but in need of help, Sgt. Ronnie Lopez said.