FLORENCE, S.C. (AP) -- A high school teacher accused of raping a woman and harassing at least two female students crashed his car into a tree Thursday in an apparent suicide, authorities said. A suicide note was found in Scott L. Knight's car after the 8 a.m. wreck in Florence County, Charleston County Sheriff's Maj. John Clark said. Authorities would not provide any details about the note's content. Knight was arrested last week at his home after a woman said he pushed her in a room, locked the door and raped her. He was charged with third-degree criminal sexual conduct and assault and battery of a high and aggravated nature, Clark said. The arrest came about a month after Knight was placed on administrative leave from West Ashley High School following his arrest on two counts of first-degree harassment. A 16-year-old girl said Knight made inappropriate statements about her to her boyfriend, tried to make conversations with her and stood outside her classroom and stared, according to an arrest warrant. A 14-year-old girl also said Knight made inappropriate remarks to her, a police report said. ------ Information from: The Post and Courier, http://www.charleston.net