Mexican prosecutors have formally charged eight people in the grisly cult killings of two 10-year-old boys and a 55-year-old woman.
The suspects are mainly members of an extended family whose purported leader has said they killed the victims as an offering to Santa Muerte, or Saint Death, between 2009 and 2012.
The idol is usually depicted as a robed skeleton, and her followers include criminals and drug traffickers.
Sonora state prosecutors' spokesman Jose Larrinaga said the eight will face charges of first-degree homicide, robbery, conspiracy, corrupting minors and illegal burial.
The charges carry sentences ranging up to 50 years, and sentences would be served concurrently.
A 15-year-old suspect will be held at a youth facility until she is 18 and then face trial.