Paranormal 4 Gets Writer

 Zack Estrin has been charged to handle the script for Paranormal Activity 4 says Heat Vision.

The premise for the film is being kept under wraps.

Henry Joost and Ariel Schulman, who directed Paranormal Activity 3, are expected to return for the fourth but sources say the studio is not yet in negotiations with the duo.

Even though the script isn't done, the film is already set for an October 19th release.

Estrin works with both the Paranormal Activity Franchise producer Jason Blum and creator Oren Peli on TV's The River