The suspects entered the duplex around 11 p.m. Thursday, Aug. 13, according to deputies
Francis Noll, 85, and 83-year-old Rachel Noll live in one side of the duplex home. Joshua Noll, 39, and 42-year-old Sherry Noll live in the other.
The suspects forced Joshua and Sherry into Francis and Rachel’s home and tied up all four victims, according to authorities.
Rachel was assaulted numerous times by the suspects, deputies said.
Deputies said the suspects stole money, jewelry, wallets and other valuables.
Erin Noll is Rachel and Francis’ great-granddaughter.
The sheriff’s office said Erin planned the armed robbery.
All of the suspects are Zanesville residents.