Police said more arrests were expected as the investigation continues. A possible motive wasn't disclosed.
Oneida County District Attorney Scott D. McNamara indicated Wednesday during a phone call with 48 Hours' Crimesider that the location of the attack on Lucas Leonard, at the Word of Life Church, was not incidental. He declined to comment on a motive or other details of the case. McNamara said a preliminary hearing for all six defendants is scheduled for Friday.
A neighbor of the teenage brothers says they were not allowed to do "normal" kid things.
Nicole Howard says Christopher and Lucas Leonard weren't allowed to have sleepovers. The 31-year-old, who says grew up six houses away from the Leonards, says the family was very religious and the children were forced to read the Bible two hours each day.
The investigation began at about 12:30 p.m. Monday when family members brought Lucas Leonard to a hospital, where he was pronounced dead. Investigators determined that the Word of Life Church was the scene of the death, and the building was surrounded by special operations teams from state and local police agencies.
Police eventually entered the church, a three-story brick building on a residential street that originally housed a school. Several church members were interviewed, and several children were turned over to child welfare officials.
It took time to find Christopher inside the church, according to officials. He was on the second floor and was not making himself known. Family members did not say where he was.
In addition to the Leonards, police arrested David Morey, 26, of Utica; Linda Morey, 54, of Utica; Sarah Ferguson, 33; and Joseph Irwin, 26, who lives in the church building.
Ferguson is the victims' sister, according to police.
Bruce Leonard's lawyer, Don Gerace, said his client will not be able to make the $100,000 bail. He said it was too early to comment on details of the case.
"We expect to learn more about the evidence and charges at that time," Gerace said of the upcoming hearing.
Deborah Leonard's lawyer, Devin Garramone, declined to comment. Contact information for the other defendants' attorneys wasn't immediately available.