Here Lies: My Favorite Mechanism

About Here Lies, from BoardGameGeek:

In Here Lies, mystery surrounds every demise. You and your friends, the world's greatest detectives, have gathered to compare your toughest cases. Murders, accidents, betrayals- these are the events of the past you seek to understand. With one player taking the lead, the remaining investigators will inquire about the case, building up a collection of clues that individually do very little, but together create a web of intrigue and storytelling. The lead investigator will listen and guide the team, assessing how close they are getting to their 'eureka moment', with all players winning or losing together. Here Lies is a cooperative game of deduction and discussion, and involves freeform play, creative clues, and strange scenarios. -description from the publisher