Shortly after midnight on November 2, 2014, 25-year-old Cedar County Deputy Matthew Scott Chism attempted a traffic stop in El Dorado Springs, Missouri, on a vehicle driving without headlights. The driver refused to stop and a pursuit followed. At the intersection of Hickory and High Streets a passenger exited and fled on foot; Deputy Chism chased and became involved in a physical struggle with that man. Gunfire was exchanged during the struggle and both Deputy Chism and the passenger were struck. Deputy Chism was taken to a local hospital and died of his injuries; the passenger was pronounced dead at the scene and later identified as William A. Collins, 28, of El Dorado Springs.

The driver was located at a nearby residence and arrested; he was identified as 28-year-old Joshua Jay Brown of El Dorado Springs and charged with second-degree murder, possession of a controlled substance, and tampering with evidence. At trial a Greene County jury in May 2016 convicted Brown of felony murder, hindering prosecution, possession of methamphetamine, and tampering with evidence, but the judge later set aside the felony murder conviction and imposed a 10-year sentence on the remaining counts to run concurrently with a 14-year sentence Brown was already serving for a probation violation, yielding no additional time tied to Deputy Chism’s death.

What details about the night or the people involved might help explain how events escalated so quickly?