Investigators say they haven't found the woman but believe he's connected to her disappearance.
PRESCOTT, AZ - A Prescott-area man has been arrested in connection with the disappearance of his wife who authorities believe may be dead.
Yavapai County Sheriff's officials say 55-year-old David Pagniano was taken into custody Wednesday on suspicion of second-degree murder.
He's been booked into the Camp Verde Detention Center on a $2 million bond. It's unclear if Pagniano has a lawyer.
Sheriff's deputies took a missing person report Sunday on 39-year-old Sandra Pagniano, who hasn't been seen since last Friday.
Investigators say the couple is separated but living together in a house outside Prescott.
Their two children -- ages 8 and 12 -- are under monitored care.
Sheriff's detectives say they developed information that Sandra Pagniano may have been harmed or killed by her husband and undisclosed evidence led to his arrest.