"In Judges 19:22–29, a mob demands to rape a godly master's guest. The master offers his daughter and a concubine to them instead. They take the concubine and gang-rape her all night. The master finds her on his doorstep in the morning, cuts her into 12 pieces, and ships the pieces around the country."
http://www.biblegateway.com/passage/?search=Judg%2019:22-29&version=NIV
http://www.biblegateway.com/passage/?search=Judg%2019:22-29&version=NIV