SLCPD "City Marshal" (Chief of Police), killed in the line of duty. Active in the LDS religion, a member of the Nauvoo Legion who was among those arrested in November of 1870 for participating in the "Wooden Gun Rebellion"... one of the more amusing incidents arising from the Great Godbeite/Josephite Schism.
About noon on August 25, 1883, one Sam J. Harvey entered a restaurant on Main Street in downtown Salt Lake City and started an argument with the proprietor, at some point drawing a revolver and aiming it at him. The owner managed to get Harvey to leave, then summoned the police to deal with the situation.
Marshal Burt, along with one Charles H. Wilckens, described by the Salt Lake Daily Tribune as a "watermaster", were the only persons at the police station when the call came in, and they responded.
Approaching First South and Main, the officers were met by the restaurant owner who led them to Harvey, who still had his weapon drawn. Seeing the officers, Harvey raised the weapon, shouted "Are you an officer?", then fired before either Burt or Wilckens could answer.
Wilckens rushed up and seized Harvey, and there was a brief struggle for the weapon during which Harvey fired again, inflicting what the Daily Tribune later described as "an ugly wound" on Wilcker's left arm, near the elbow. An eyewitness standing nearby then rushed up and snatched the weapon away from Harvey as he was attempting to fire again. The gunman was then marched off to the city jail, which was located in City Hall on the north-east corner of First South and State Street (then called 100 East- the State Capitol building wouldn't be built for another 30 years).
As for Marshal Burt, nobody knew yet that he had even been injured. He walked away from the melee a short distance and into the nearby A.C. Smith drug store, then went behind the store counter where he collapsed and died.
When it was discovered that Marshal Burt had been slain a large crowd gathered outside City Hall, demanding that Harvey be handed over to them for a dose of "frontier justice" (i.e., a suspended sentence). Fearing for the miscreant's safety, the officers apparently attempted to relocate the guy to a safer location, but instead he was seized, "knocked down, kicked, stamped on (sic), and beaten by the crowd" (as the Daily Tribune later reported), then dragged over to a nearby exposed roof beam where he was hanged... all within twenty minutes of the shooting on Main Street.
Marshal Burt was accorded a grand funeral, as befit the circumstances, and was deeply mourned by the people he had given his life to protect.