Beaver County district attorney David Lozier told county commissioners at their regular work session Wednesday that the DA’s office is working with state and local law enforcement agencies in the investigation of the Deltondo murder case in Aliquippa. Lozier says, so far, 400 hours in overtime have been racked up by county detectives. Lozier also added his office is awaiting the results of some forensic tests before progresssing in the investiation.