The Albuquerque Journal reports that 64-year-old Rudy Montoya was found beaten and stabbed in his home Friday.
The Rio Arriba County Sheriff's Department arrested the victim's niece, 34-year-old Rhiannon J. Montoya of Espanola, and two other women, 18-year-old Sheanee Martinez of Chimayo and 22-year-old Angel P. Baldonado of San Juan Pueblo.
Investigators say Montoya engineered the crime, though she wasn't present when her friends killed Rudy Montoya.
Police say Martinez stabbed the victim more than 40 times.
Baldonado is accused of striking Rudy Montoya with a baseball bat.
Authorities say Baldonado suffered burns while burning the victim's car to destroy evidence.