The parents of a 19-year-old boy suspected of killing a 20-year-old female college classmate sent an e-mail to the college saying they hoped their son would tell the truth about the crime, officials at the college said Tuesday.

The e-mail was sent to Toru Amano, president of the Tokuyama College of Technology. Amano told reporters he received the e-mail late Monday night after he visited the boy's parents at their home.

During the meeting, the parents told Amano they wanted to apologize to the parents of the victim, Ayumi Nakatani, who was studying civil and architectural engineering at the five-year technical college in Shunan, Yamaguchi Prefecture.

The parents said in the e-mail that they cannot understand why their son killed another person, according to Amano.