article_snippet: Thousands of miles away, officers grieved the shooting death of Wisconsin State Trooper Trevor Casper, 21, of Kiel, according to the Wisconsin Professional Police Association.
article_snippet: . Col. Brian Rahn of the Wisconsin State Patrol said the rookie officer's handling of the fatal encounter was "absolute textbook -- from the time Col. Brian Rahn of the Wisconsin State Patrol made contact with the vehicle until the event was over.
article_snippet: the Wisconsin Department of Justice Division of Criminal Investigation will conduct an investigation, a requirement for officer-involved shootings in the Wisconsin State Patrol.
highlights_snippet: Wisconsin trooper killed during first solo assignment, police say .
  
highlights_snippet: Wisconsin trooper killed during an attempted bank robbery .