article_snippet: Jurors lean forward in Jurors chairs, peering into monitors and scribbling notes as Aspinwall, a former Massachusetts state trooper and New Hampshire police chief, takes Jurors frame by frame through video during two days of testimony.
article_snippet: They attack Aspinwall's credentials.
article_snippet: Aspinwall is well-schooled in Glocks but admits Aspinwall doesn't consider Aspinwall a gun identification expert.
article_snippet: defense attorney James Sultan asks.
article_snippet: Bristol County Assistant District Attorney Patrick Bomberg asks Aspinwall.