A St. Louis official who joined protests after former Officer Jason Stockley was acquitted of murder last year in the shooting of drug suspect Anthony Lamar Smith is suing over the police response to the demonstrations, reports the Associated Press .
Democratic Alderwoman Megan Ellyia Green alleges in the federal lawsuit filed Tuesday that police used tear gas on her without justification on Sept. 15, 2017, during a demonstration that followed Stockley's acquittal of first-degree murder in the death of Smith.