A Windham man is facing a charge of aggravated felonious sexual assault after a 17-year-old boy told his therapist the man had sexually assaulted him twice, the last time being seven years ago in Londonderry.

Registered sex offender Richard D. Bauchman, 63, of 38 First St. in Windham waived a probable cause hearing in Derry District Court scheduled for Monday, Sept. 8. The case will now proceed to Superior Court.

A Child Protection Service representative called Londonderry Police Juvenile Services Detective Donald Laduke on March 13, reporting the boy had described the Londonderry assault to his therapist, according to an affidavit.

Several days later in an interview, the boy related his story to a forensic interviewer from the Child Advocacy Center of Rockingham County in Derry.

The boy said he and Bauchman were riding down trails near the old railroad bed. Police later identified the area as immediately next to Tru-Green Chemlawn at 15 Delta Drive in Londonderry through the victim’s description of trucks he could see in a nearby parking lot.

The alleged assault occurred when the victim was 9 or 10 years old, and lasted about 20 minutes, the victim told investigators.

Laduke and Windham police Detective Daniel Clark went to Bauchman’s home on June 10 and asked him to answer some questions.

According to the affidavit, Bauchman told Laduke and Clark several times that he didn’t remember the incident in question. Bauchman then said he was “99 percent sure” he hadn’t committed the assault, the affidavit said.

The New Hampshire Attorney General’s Office authorized a taped phone conversation between the victim and Bauchman. During the conversation, Bauchman expressed his concern about authorities finding out about the incident.

“They would arrest me and put me in jail for 30 years,” Bauchman allegedly said in the taped conversation.

Bauchman also told the victim that since the information came from his therapist, authorities would not be able to prove anything.

The victim then asked Bauchman why he did it, to which Bauchman allegedly replied, “I don’t know. I wish it never happened, to tell you the truth. I’m sorry I did it, but I wish, you know, I wish I could go back in time and say, you know, it didn’t happen.”

Bauchman was convicted of aggravated felonious sexual assault in April 1988 in Sonoma County Court in California. The victim in that case was under the age of 13.

Bauchman was arraigned in Derry District Court on Tuesday, Sept. 2, is being held at the Rockingham County Jail on $50,000 cash bail.