(MCT) — JOINT BASE LEWIS-MCCHORD, Wash. — Testimony in the preliminary hearing for U.S. Army Staff Sgt. Robert Bales wound up Sunday night with a senior Afghan police investigator saying he did not believe Bales could have killed 16 people in two separate villages by himself.

Maj. Khudai Dad, chief of criminal techniques for the Afghan police in the province of Kandahar, said he walked the area between three housing compounds hit by a gunman on the night of March 11 and doubted that any single person could have killed so many people in such a wide area in the space of three hours.