Matthew Wilson suffered serious injuries in his lower extremities in the crash early Friday morning and was flown by medical helicopter to Tufts Medical Center.
Witnesses told police that speed may have been a factor in the crash. There have been at least 7 motorcycle fatalities in New Hampshire this year, according to the DMV Fatal Crash Unit.
The Essex County District Attorney's Office told Seacoast Current that a death connected to the crash is under investigation but did not disclose details.