Librarian is carjacked in gymnastics class parking lot and stabbed to death by sex offender who then raped her daughter, 10

A man previously charged with having child pornography cut an electronic monitoring device off his ankle before carjacking a woman, fatally stabbing her and raping her 10-year-old daughter. David J. Renz abducted the school librarian and her daughter as they left a gymnastics class at a mall in the Syracuse suburb of Clay, about 150 miles west of Albany, on Thursday night. Renz bound both victims, raped the girl and drove a short distance to a spot where the girl escaped and was found by a passing motorist, troopers said. The motorist told 911 dispatchers he saw a man running away from the scene, allowing police to quickly send in officers on the ground and a sheriff's helicopter in the air. Renz was caught a short time later near a wooded area. They believe Renz tied up the woman and the girl and then raped the 10-year-old in a deserted area of the mall parking lot shortly before 9pm on March 14. It was unclear how the girl escaped or when her mother was killed, authorities said.

http://www.dailymail.co.uk/news/article-2294194/Man-charged-stabbing-woman-death-raping-girl-10-gruesome-carjacking.html