Investigators want to gather more evidence before the trial of Janet's husband Raven on first-degree murder charges.
Authorities extradited Abaroa from Idaho on February 26. Janet was found stabbed to death in the couple's Durham home in 2005. She was pregnant at the time of her death.
Their son, who was 6 months old at the time, was found unharmed, sleeping in a room next to where Janet's body was found.
Raven has always maintained innocence, saying he was participating in a soccer game the night of his wife's murder. He told police when he arrived at home around 11 p.m. , he found her body and called police.
Shortly after the murder, Raven moved to Utah, remarried and then moved to Idaho. His second wife eventually separated from him, claiming she believed he killed Janet.
During the years following the murder, Durham police said they never quit working on the investigation, knowing one day they would have enough evidence to make an arrest.
Police have not elaborated on the specifics of the evidence, but say they have a strong case.
A trial date has not been set.