Killer Thriller: Lou Diamond Phillips Went Undercover as Richard Ramirez and It Backfired Instantly

After immersing himself in the Night Stalker's life to prepare for his starring role, Lou Diamond Phillips put on a hoodie and prowled a neighborhood like Richard Ramirez . What happened next stopped the experiment in its tracks.

Plus, Lou reveals the chilling truth about the killer that disturbed him most. See for privacy information.