Historical clue formulations

• One taking inventory? — 2019-02-10
• Riot opportunist — 2015-12-27
• Opportunist of a sort — 2006-02-21
• Riot participant, maybe — 2002-12-09
• Window smasher, maybe — 2002-07-23
• One who takes inventory? — 1999-12-10
• Riot participant — 1997-01-17
• Pirate at work — 1996-02-28