The investigation began in March when Channel 6 News learned a sexual predator in Johnstown was supposed to be registered under Megan's Law (used to track the location of convicted for sex offenders) but wasn't. As we dug deeper, we learned there may be more out there who slipped through this legal loophole.

Channel 6 spoke to a young mother, we'll call her Linda to protect her identity. Linda knows the pain of sexual abuse. When she was four years old, her nightmare began.

Linda says, "Life was flipped upside down from then on."

Her uncles molested her for close to ten years before she told her parents. When she was 13, her uncles were convicted and sentenced to two years in prison, but after serving their time and registering under Megan's Law, they were set free.

Linda says, "One of them works for maintenance in an apartment building and has keys to apartments that has kids in them. The other one lives within blocks of an elementary, high school, and middle school. I just don't understand how this can happen."

In March, the same question was asked of Jason Kniss, who was under house arrest and being monitored by an anklet. His picture was not on the Megan's Law Website, supposedly because he was under house arrest, but Channel 6 discovered Kniss and others like him still need to register with the site.

Because of our investigation, not only did Kniss register, but Cambria County officials revamped their Megan's Law policy.

Cambria County Judge Gerard Long says, "Normally custody will encompass in house detention with anklets, but it's an open question and no one will give us a definitive answer. So, we're going to air on the side of safety and if they're in house detention, make them register."

...but how many more are out there like Kniss you don't know about? Only Cambria County changed their policy. What about the rest of the region?

Judge Long says, "I'd imagine each county handles it differently."

For Linda, that answer isn't good enough. She believes the entire Megan's Law system needs to be improved for the sake of your family.

Linda says, "There's so many cracks in the system and I thought it was a great thing at first, but it just doesn't work as well as I think it was meant to."

Linda says she recently saw one of her uncles outside a local school, waiting to pick up his nieces and nephews, and not one parent knew he is a convicted child molester. Linda says this is where Megan's Law fails. Not everyone has a computer.

"Schools should have pictures of them posted in their hallways. There should be pictures in libraries, places that people frequent."

Police say you can protect your children. Take a look at the website, and talk to members of your community. If someone new moves to town, find out who they are and where they're from.

Linda says, "One minute of your time can save someone's entire life from misery and that's totally worth it in my book."

If you believe someone in your neighborhood should be registered under Megan's Law, call the Megan's Law section of the Pennsylvania State Police at 1-866-771-3170.