— Police say a North Carolina man accused of killing his two young daughters, their sister and their mother likely beat the victims to death with a hammer.

Dibon Toone, 39, was in a Richmond, Va., courtroom Thursday for an extradition hearing on a murder charge in 32-year-old Garlette Howard's death.

Toone returned to Greenville Friday afternoon and was expected to make an initial court appearance there on Monday, when Greenville police charged him with additional counts of murder in the deaths of 11-year-old Bryana Carr, 7-year- old Ayona Toone and 6-year-old Mayona Toone.

The victims were found dead Tuesday night inside their Greenville home. Toone was arrested hours later in Richmond driving Howard's SUV.

Police say autopsies show the four victims died from "traumatic head injury by assault," and they said they believe Toone used a hammer.