New Hampshire Department of Justice
New Hampshire Department of Justice - an official New Hampshire Government Web site
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Christopher Gagnon Case Videos


These two videos were recorded by an eyewitness using his cellular telephone, and depicts portions of the encounter between Christopher Gagnon and the people who he was with, and Stephen O’Neill and Tristan Stone, on the evening of February 2, 2014. The events contemporaneously recorded in these videos occurred shortly before Mr. O’Neill stabbed and killed Mr. Gagnon.

WARNING – these videos show an intense and ultimately violent confrontation and include language and images that may be unacceptable or troubling to viewers. Viewer discretion is advised. Click on the Video Clip to continue or "Return to DOJ Home" to cancel.


Video Format Symbol Video format. Plays natively in all HTML5 web browsers.

New Hampshire Department of Justice | 33 Capitol Street | Concord, NH | 03301
Telephone: 603-271-3658