By George P. Hassett

A Curtis Street man opened his door at 3:27 a.m. Sunday to see a man standing in the doorway with a knife raised over his head, police said.

The man with the knife, later identified as Murtagh MacKenna, 19, of 420 South Main St., Nashua, NH, said, “Thank god you opened the door, they’re trying to kill me,” according to police. Police said he asked if someone named Cullen was in the apartment. The victim did not know MacKenna or anyone named Cullen, police said. He asked MacKenna to get rid of the knife and MacKenna complied, police said.

MacKenna appeared to be under the influence of alcohol, police said. Police said there were no threats made but damage was done to the front door from the knife as MacKenna stabbed the door. MacKenna was arrested and charged with destruction of property over $250 and possession of a dangerous weapon.