FAIRFIELD, Calif. – Police said Friday they have arrested a barber in the death of a 13-year-old girl whose naked body was found last week in a Northern California park.

Anthony Lamar Jones, 32, of Fairfield was taken into custody after police had him under round-the-clock surveillance as the main suspect in Genelle Renee Conway-Allen's slaying. During a news conference to announce the arrest, police said they believe Jones, who was identified early in the investigation as a suspect, acted alone in the killing.

They did not say how the girl died, citing an ongoing investigation.