Shai Lierley, a Costco loss prevention supervisor, demonstrates how Erik Scott brought his gun on an officer as he testifies during a coroner's inquest at the Regional Justice Center Thursday, September 23, 2010.

Steve Marcus

Shai Lierley, a Costco loss prevention supervisor, demonstrates how Erik Scott brought his gun on an officer as he testifies during a coroner's inquest at the Regional Justice Center Thursday, September 23, 2010.