who comes clean. >> like a drug. it was definite lay addiction. >> and the marine sniper who comes armed. >> i didn't listen to my sixth sense that kept me alive in iraq and i didn't do that here. >> what niece store for all of these men? >> you are going to jail today. >> chris hanssen with a "dateline" net crime, to catch a predator. >> thank you for joining us. >> now we move across the country to northern california to the town of petaluma where two high-profile cases made national headlines. >> when our hidden cameras find there, again, we want to warn you that this is explicit. here's chris hanssen. >> hey! you made it. hey, come on back. you made it. hey! you're here. hey. >> this girl appears to be home alone and looking for company. >> come on in. >> she keeps waving men into the garage. >> come on in. >> and they keep following her. >> come on back. >> all the way to the backyard.