A former Plano neurosurgeon accused of killing or maiming patients during surgeries has been arrested, records show. Christopher Duntsch, 44, of Centennial, Colo., was booked into the Dallas County Jail on six charges Tuesday afternoon and remained there late Wednesday in lieu of $600,000 bail. He is charged with five counts of aggravated assault causing serious bodily injury and one count of injury to a child, elderly or disabled person. Jail records listed no attorney. Duntsch performed a number of spinal surgeries at Baylor Regional Medical Center at Plano and was accused of maiming several patients and causing the death of at least two between July 2012 and June 2013.