ADAMS COUNTY - Sex, lies, and cell phone video are at the center of a double murder investigation in Adams County.
A close friend of two murdered teenagers says they took video of their neighbor soliciting sex, tried using it to blackmail him, and ended up dead.
William "Billy" Otto, 43, was known as a "cool guy" who would invite teenagers to his house in the 8000 block of High Street in Adams County to drink and party.
Issiah Furley, 17, a neighbor and friend of the victims, says alcohol was always available to the teenage boys hanging out at Otto's house.
"It was a kick back spot. You could go there and chill and relax," Furley said. "Normally [Otto] is like, 'hey you want to come in and have a beer?'"
Furley says he was shocked when friends showed him camera phone video of Otto in a very different light.
"The video made me not feel good in my stomach," Furley said.
An Adams County arrest affidavit Obtained by 9Wants to Know says 16-year-old Danny Espinosa took cell phone video of Otto asking him for oral sex and "inappropriately touching him."
Espinosa and his friend Jonathan Gonzalez told Furley they had a plan.
"They said that they were going to try and get money from him. And I told them don't do it," Furley said.
Adams County investigators say Espinosa and Gonzalez went to Otto's house on Friday and handed him a note asking for $10,000 each to keep quiet about the video.
The affidavit says their blackmail plot backfired, when Otto went to his bedroom, got a handgun, and shot and killed both teens.
The affidavit also says Otto told investigators one of the teenagers was holding a butcher knife, taken from a kitchen drawer, when he shot him.
Forensic psychologist Dr. Max Wachtel says the two 16-year-olds may not have realized the danger they were putting themselves in.
"That situation is so dangerous. You don't know what that person is going to do," Wachtel said. "If you are a kid, a teenager, and you're hanging out with someone who is 43, that guy's not your friend."
After the murders, investigators think Otto drove the bodies 150 miles to Sedgwick, Colorado and buried the boys in shallow graves near his family's farm.
They think Otto also burned some of the evidence on that farm, including a piece of blood stained carpet.
Dive crews spent the last two days searching an Adams County lake for evidence.
Otto left his truck in the parking lot of Harlan Bakeries where he works as a maintenance manager.
Furley got nervous when he couldn't reach his friends, and their families reported them missing, so he went to Otto's house on Saturday.
Furley says Otto was carrying a gas can, a shovel, and a rake.
"I went down there, saw blood on the door handles, still didn't believe it," Furley said. "When I saw him, he was pale. He shut the door, locked it."
That's when Furley called police.
Otto reportedly told his bakery coworkers about the murders, turned himself in to Adams County investigators, and led them to the location in Sedgwick where the bodies were buried.
Furley is left wondering if he could have done more to save his friends.
"I saw the video, they told me what they were going to do, and I didn't do nothing about it," Furley said.
Adams County deputies notified families on Monday afternoon.
Otto remains in jail without bond.
(KUSA-TV © 2013 Multimedia Holdings Corporation)