His brother preaching to him about Mormonism and gay sex between his brother and Rick Storre bothered Sanchez

Detective Ron Harpham described details of why they arrested Vincent Sanchez and the recent tension at the Harris Street house that led to Vincent Sanchez murdering his brother Lance Henry and Rick Storre.

Right before the murder, Sanchez told Detective Harpham he overheard a conversation between Storre and his brother about "oral sex for a $100." This bothered him.

Detective Harpham said that EPD Office Josh Siipola told him why he had detained  Vincent Sanchez.
Officer Siipola said that they were on the scene of a double homicide, they found Vincent on the property, "with all the commotion (of law enforcement being there) he did not come out of the camp, when he was taken to EPD in cuffs, in front of media, police and neighbors, he did not ask why and Vincent spoke of Storre and his brother in the past tense.

Detective Harpham testified that on the northwest corner of the property, there was a small camp built of green tarp supported by plastic totes, cinder blocks and it contained personal property and clothes belonging to Vincent Sanchez. They also found nine 12 gauge shotgun ammunition and seven large knives.

When Detective John Luken and Det. Harpham interviewed Sanchez at EPD, the interview took five hours and he was cuffed the whole time. He was read his Miranda rights and he agreed to speak with police.

The police knew Rick Storre was one of the victims and that he owned the house based on the original call from Storre's friend who discovered the body. It was Vincent who told them the identity of the second victim and that Lance Henry was his brother.

Storre was a man Vincent knew since he was three years old. Storre and Vincent's dad were very good friends. Vincent did not like Rick Storre.

Vincent was homeless at Thanksgiving. Sometime around December 2013, Storre allowed Vincent to stay at his house. The residence was a one bedroom, one bath with a kitchen and living room area. There was a tiny computer room where Vincent slept on a makeshift bed. Vincent would not reveal anything but from other sources, law enforcement learned he got to stay at the house in exchange for chores.

Henry moved in a month prior to the murders. Det. Harpham said that in the interview, Vincent gave conflicting information on his relationship with his brother. They used to be close, but over the last few weeks leading to the murder, there was tension building at the house. The primary source of conflict between Vincent and his brother was that Lance had recently converted to being Mormon and was constantly preaching to Vincent. Detective Harpham testified that Vincent told the detectives he did not believe in God.
Vincent had also "overheard some conversations about homosexual sex between Lance and Rick Storre."

A week after he moved in, Lance tried to get Vincent to move out but Storre let him stay. Vincent could not sleep because Lance was on the computer so he moved out into the backyard.