NORTH HAVERHILL — State prosecutors are seeking a 30- to 60-year prison sentence for Kyle Clampitt, the Dartmouth College alumnus who was convicted earlier this year of raping an 18-year-old first-year student on the rooftop of a campus fraternity house in 2022.

Clampitt’s lawyers meanwhile are seeking a much shorter sentence, asking a Grafton County Superior Court judge to mandate their client to eight to 20 years in state prison.

In making their recommendation, prosecutors cited the brutal nature of the crime and the long-term trauma the victim suffers as the rationale for wanting to keep Clampitt, 27, behind bars for decades.

Clampitt “repeatedly sexually assaulted (the victim) with force, brutality and violence, taking what he wanted from (her), cruelly and without mercy,” state prosecutors said in a pre-sentencing memorandum.

“The impact of his crimes on (the victim) cannot be understated,” prosecutors said, adding the rape “permeated every aspect of her life.”

The victim, now a senior, “supports the state’s recommendation” for sentencing, prosecutors noted in their memo. The Valley News generally does not identify the victims of sexual assault crimes.

Defense attorneys contend a longer period in prison would run counter to incarceration’s purpose to balance punishment with rehabilitation and deterrence.

The 67-page pre-sentencing memorandum by Clampitt’s lawyers includes more than three dozen letters from family members, friends and associates — including his lacrosse coach of four years at Dartmouth — who asked the court to weigh what they said are positive qualities of the defendant.

“He was no stranger to hard work, often placing himself among the top percentage of our group when it came to focus, dedication and work ethic,” wrote Brendan Callahan, who recruited Clampitt out of high school in Bloomsbury, N.J. “Coming from a hard working background, he was not someone who was groomed for the Ivy League, yet he thrived due to his relentless effort and humble spirit.”

Callahan’s tenure at Dartmouth ended in June 2023, after nine seasons.

Clampitt’s sentencing is scheduled for 10 a.m., Monday at the Grafton County courthouse in North Haverhill.

Clampitt, who turned 27 a week after he was taken into custody following his Jan. 21 conviction, is being held at the Grafton County House of Corrections.

A jury found him guilty of 12 counts of aggravated felonious sexual assault. Each count carried a potential 10- to 20-year prison sentence.

Clampitt was a member of the Class of 2020. He was visiting Hanover for a lacrosse game and hanging out at his former fraternity, Delta Theta Chi, where he encountered the victim at a party on the evening of April 23, 2022.

Technically, the state is seeking three 10- to 20-year sentences to be served consecutively on three of the convictions of aggravated felonious sexual assault.

Similar sentences on three other of the convictions would be suspended. A suspended sentence can be imposed if an individual is charged with a subsequent crime.

“Three consecutive terms of 10 years to 20 years will punish the defendant for his heinous conduct. He used his rank as an alumnus and brother of the … fraternity to take advantage of (the victim) and repeatedly and violently sexually assault her. The crimes were severe and so must be his punishment,” prosecutors said.

Prosecutors said they would agree to having five years suspended from the minimum 30-year sentence, providing Clampitt successfully completes a sex offender treatment program while in prison.

In a separate petition with the court, prosecutors explained they wanted to “hold back” sentencing on the remaining six sexual assault convictions pending any action by the New Hampshire Supreme Court if the case is appealed.

If the high court were to overturn any of Clampitt’s convictions on the charges  for which he has been sentenced, this would allow the state to refile the remaining convictions for sentencing in Superior Court.

Any appeal of the convictions by the defense to the New Hampshire Supreme Court can be filed only following imposition of sentence by the lower court.

Contact John Lippman at jlippman@vnews.com.