CONCORD, N.H. — The New Hampshire attorney general’s office said it’s completed its review and concluded that a Keene police officer was justified in fatally shooting a man who had taken his ex-girlfriend hostage and was threatening to kill her last year.

A preliminary report from the attorney general in February 2010 drew the same conclusion, a week after 41-year-old Charles Turcotte was shot once in the head by Officer Josh English.

The report said English fired after Turcotte repeatedly refused to drop a knife he was holding to his ex-girlfriend’s throat.

Attorney General Michael A. Delaney said Monday that the use of deadly force was justified.