The three suspects were caught in the victims’ car in Nevada.
According to officials, Kyle Drattlo, Christopher Terry and Brianna Harding were arrested in Nevada and agreed not to fight extradition to Arizona.
The three are charged with murdering the Fulghams last month in the couple’s home near Grant and Swan.
Drattlo, the victims’ grandson, was transferred back on Tuesday and Terry and Harding were returned on Monday. Drattlo’s bond is set at $1,000,000.