Facebook and MySpace are both worlds where teens can be whomever they want to be. The problem is that so can the people who hunt them.

Doug Lamb knows that all too well.

Last year his 17-year-old daughter, whose identity we're protecting, met Patrick Daemon on MySpace. "He always kept saying he just wanted to be friends (with her)," says Lamb. "He just didn't get the picture of 'leave me alone.' He was pretty persistent."

As Daemon's interest in Lamb's daughter intensified, Lamb decided it was time to see what MySpace was all about. That day, Lamb's daughter showed her father Daemon's MySpace page with about 50 different pictures of her.

The family does not know where Daemon got them. The page also had captions like, "I like decapitating bodies," and "I'm going to cut her head off."

Just weeks later, Lamb's neighbors spotted a suspicious vehicle in the neighborhood two houses down from Lamb's. They called the sheriff. Inside the car the sheriff found Patrick Daemon. They also found a machete.

"I was kind of like, well, we have a fatal attraction-like individual here," says Lamb.

Rachel Olive is with Campfire USA. She says it's critical that parents understand the dangers of these sites. "Parents should tour these pages with their children. They should know who their kids' friends are and how they are friends with them."

In 2007, Daemon plead guilty to stalking the young girl. Daemon will be released back into the community next week.

"I'm a little nervous," says Lamb. "I'm more afraid for my children more than me."

The victim was able to block Daemon's access to her site by simply "de-friending" him. Investigators have also contacted MySpace to have him removed entirely from the site.

The family says Daemon still tries to contact them even though all of them have active restraining orders against him.