Musician Martyn LeNoble has been subjected to menacing tweets from an anonymous account, prompting officials at the Los Angeles Police Department (LAPD) to launch an investigation.
Cops served a search warrant on Twitter HQ in San Francisco, six days after the horrifying messages emerged on 20 September (12). The profile has since been deleted, according to TMZ.com.
The hate-filled tweets read, "You stole (Christina) away from me. If not for you she would be mine... I will not accept this. I am going to kill you!!!!!!!!!... I'm going to bust your head in for taking her away from me!!! Be afraid, be very afraid!! You think this is a joke? I want to see how funny you think I am when I blow your f**king head off!!!"
The Samantha Who? star revealed earlier this month (Jul10) she is expecting a baby with her fiance, Dutch musician Martyn Lenoble.
The 38 year old appeared on Tuesday's (27Jul10) Jimmy Kimmel Live! sporting a massive baby bump, which she later showed was a sweatshirt under her dress - and she used the interview to open up about her pregnancy so far.
Applegate explained, "I feel okay now. Oh god, I'm like text book right now - I'm like everything you read in the books, I got it all. The cravings, the morning sickness I had for a really long time. The morning sickness is so bad!"
And the actress admits she's also suffering unexpected mood swings: "The psychosis... you kind of go a little cuckoo. Yelling for no reason, it's almost out of body. You're stepping back from yourself and watching this insane monster in front of you that's you, and you want to stop her but she's funny to watch."