(CNN) The suspect in a Friday shooting in Grantsville, Utah, is a juvenile who police believe is a relative of the four people who died and the man who survived, police said.

All of the victims were members of the same family, Cpl. Rhonda Fields said at a news conference Monday.

Consuelo Alejandra Haynie, 52, was found dead by officers Friday along with three of her children,15-year-old Alexis, 14-year-old Mathew and 12-year-old Maylan.

The children's father, Colin Haynie, was the only survivor. He was released from the hospital Monday, Fields said.

Police are not releasing the name of the suspect because he is a juvenile, and Fields said they cannot give any details about how he is related to the victims.

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