Daniel O’Connell, 28 and from Lowell, Massachusetts, was found dead in a wooded area off Route 106 in Loudon, New Hampshire, on Halloween Day 1971. An autopsy showed he sustained shotgun wounds and blunt force trauma to his head and face; those injuries contributed to his death.

The discovery prompted a homicide investigation that has remained unsolved. No arrests have ever been made. The case has been transferred through successive investigators and is currently with the New Hampshire Cold Case Unit. Authorities have not publicly disclosed any details about suspects, and the circumstances that led to his death remain unclear.

Investigators have periodically renewed public appeals for information. Can anyone who knew Daniel, his movements around late October 1971, or who has relevant memories come forward with tips?