Bill Lagattuta

Michael, Josh, and Aaron loved fantasy, especially video games.

Michael, Josh, and Aaron loved fantasy, especially video games.

For most kids, it's harmless fun. But investigators believe these boys decided to bring their dark fantasies into the real world and find a real victim, Michael's little sister.

For most kids, it's harmless fun. But investigators believe these boys decided to bring their dark fantasies into the real world and find a real victim, Michael's little sister.

For most kids, it's harmless fun. But investigators believe these boys decided to bring their dark fantasies into the real world and find a real victim, Michael's little sister.

When authorities went to see Josh, the suspicions grew. What'd they find? They found two knives under my bed. Under this bed? Mm-hmm. Police thought one of those knives looked like the one used to kill Stephanie. So they brought Josh in for questioning.

When authorities went to see Josh, the suspicions grew. What'd they find? They found two knives under my bed. Under this bed? Mm-hmm. Police thought one of those knives looked like the one used to kill Stephanie. So they brought Josh in for questioning.

When authorities went to see Josh, the suspicions grew. What'd they find? They found two knives under my bed. Under this bed? Mm-hmm. Police thought one of those knives looked like the one used to kill Stephanie. So they brought Josh in for questioning.

Aaron gave me the knife.

Aaron gave me the knife.

Aaron gave me the knife.

Police questioned Josh for 12 hours. He didn't say much more, but when he came back for another interview two weeks later, he told the police how the murder was planned. Josh told police Michael had the motive, but Aaron was the mastermind.

Police questioned Josh for 12 hours. He didn't say much more, but when he came back for another interview two weeks later, he told the police how the murder was planned. Josh told police Michael had the motive, but Aaron was the mastermind.

Police questioned Josh for 12 hours. He didn't say much more, but when he came back for another interview two weeks later, he told the police how the murder was planned. Josh told police Michael had the motive, but Aaron was the mastermind.

Police brought Aaron Houser in for questioning. He never confessed. Instead, he gave a chilling hypothetical scenario of how someone would inflict knife wounds on someone like Stephanie.

Police brought Aaron Houser in for questioning. He never confessed. Instead, he gave a chilling hypothetical scenario of how someone would inflict knife wounds on someone like Stephanie.

Police brought Aaron Houser in for questioning. He never confessed. Instead, he gave a chilling hypothetical scenario of how someone would inflict knife wounds on someone like Stephanie.

This is the hearing where Josh... Chris McDonough was one of the detectives who interviewed Josh and Aaron.

This is the hearing where Josh... Chris McDonough was one of the detectives who interviewed Josh and Aaron.

This is the hearing where Josh... Chris McDonough was one of the detectives who interviewed Josh and Aaron.