BALTIMORE (AP) — A toddler whose remains were found inside a suitcase in Philadelphia this spring was starved to death by members of a religious cult, including his mother, in part because he refused to say "amen" after meals, police said.

Ria Ramkissoon, the mother of Javon Thompson, was charged Sunday with first-degree murder in the boy's death, and Baltimore police said Monday that three other members of a group called 1 Mind Ministries have also been charged with first-degree murder. Police and Ramkissoon's family say the group is a cult.

Members did not seek medical care for Javon when he stopped breathing, and the boy died in his mother's arms, according to court documents that described police interviews with a confidential informant and two children. He would have been about 19 months old when police say adults stopped feeding him in December 2006.