Justice for Captain David Dorn: Second suspect arrested in brutal murder of retired police captain


ST. LOUIS, MO – A second arrest has been made in the murder of retired police captain David Dorn. A myriad of charges was levied toward a 22-year-old suspect that was taken into custody recently in St. Louis, on top of a second-degree murder charge in relation to Dorn’s slaying.

St. Louis resident Mark Jackson was the second to be officially implicated and charged in Dorn’s murder. Sources indicate that Jackson is facing charges for robbery, burglary, theft, and three counts of armed criminal action in concurrence with a second-degree murder charge.

Here’s the background on what we’ve covered thus far on the case.


Police say they’ve captured a 24-year-old man and charged him with the murder of a retired St. Louis police captain.

David Dorn was shot to death at a north St. Louis pawn shop after a night of looting and rioting in the city.

The 77-year-old was found on the sidewalk with a gunshot wound outside Lee’s Pawn and Jewelry on June 2.

Retired police captain murdered in front of pawn shop in cold blood
Retired police captain murdered in front of pawn shop in cold blood

David Dorn also served as Moline Acres chief after retiring from the St. Louis force.

We’ve got more details on that below.

But first – the latest.

On Sunday, St. Louis Circuit Attorney Kim Gardner announced that Stephan Cannon, 24, has been arrested in connection with the murder.

He’s been charged with first-degree murder, first-degree robbery, first-degree burglary and three counts of armed criminal action as well as being a felon in possession of a firearm, KDSK reported.

Police said they have surveillance footage showing a Pontiac G6 pull up alongside the pawn shop.  Charging documents say a number of people got out of the car and broke into the store.

KDSK reported that the video then showed Cannon exiting the store and walking towards the Pontiac G6 just before Dorn arrived.

At that point, Cannon was seen coming around the corner of the store with a gun in his hand.

“It is apparent from the surveillance that at the time the shots were fired, Cannon was the only person standing at that corner,” charging documents said.

The documents state that multiple plumes of smoke were seen coming from the area where only Cannon was standing.

“Once Dorn has been shot and falls to the ground, Cannon can be seen approaching the door to the pawn shop,” charging documents said.

Police said that at Cannon’s home, they recovered a television that was stolen from the pawn shop.

Cannon confessed he was inside the pawn shop that night.  He also said he cut his hair to change his appearance after he saw his photograph being distributed.

He’s currently being held without bond.

St. Louis Police Searching for Seven in Capt. David Dorn's Killing

In the meantime, there are images of a total of six more people still circulating that police are presumably still searching for in connection with the murder.


St. Louis Police Searching for Seven in Capt. David Dorn's Killing

Now police have released surveillance footage from inside Lee’s Pawn and Jewelry, which is located at 4123 Martin Luther King Drive.

St. Louis Police Searching for Seven in Capt. David Dorn's Killing

The footage shows seven people crawling one after another beneath a security gate into the destroyed store.


In the footage, you can see that at least two men in the group are armed.

St. Louis Police Searching for Seven in Capt. David Dorn's Killing

In a still shot from the video, you can see as one of the men points a handgun toward the door – who we now know is the man arrested.

St. Louis Police Searching for Seven in Capt. David Dorn's Killing

The seven people are considered “persons of interest” in Dorn’s killing.

St. Louis Police Searching for Seven in Capt. David Dorn's Killing

Dorn’s widow spoke with the St. Louis Post-Dispatch – which, it’s worth noting, hasn’t exactly been a supportive media outlet of law enforcement.

St. Louis Police Searching for Seven in Capt. David Dorn's Killing

She said that the retired officer was a close friend of the owner of the shop.  Dorn worked there sometimes, and his gig included responding to burglar alarms.

St. Louis Police Searching for Seven in Capt. David Dorn's Killing

He was murdered there during a night of widespread vandalism and looting which saw more than 75 businesses across the city get hit.

CrimeStoppers is offering a reward up to $46,000 for information that leads to an arrest in the case. The hotline is 1-866-371-8477 (TIPS). Callers can remain anonymous.

Here’s the full backstory from earlier this week, in case you missed it:

The debauchery has officially come full-circle following riots relating to the death of George Floyd.

This time, it was a retired police captain who was gunned down and left to die.

The aftermath of the murder of 77-year-old David Dorn was reportedly broadcast live on Facebook during the early morning hours of June 2nd, outside of Lee’s Pawn & Jewelry at 4123 Martin Luther King Drive.

Police say that Dorn was shot in the torso at approximately 2:30 a.m. that morning. Various publications have reported that Dorn’s actual murder was live cast online, but that is not the case apparently.

The live cast heavily reported on was that of someone discovering his body after the shooting.

Law Enforcement Today located the video where an unidentified young man happens upon the deceased body of Dorn. The video starts with the young man driving down the street, and seeing the body of Dorn lying on the sidewalk.

You can hear the person on the video say the following when he sees the body of Dorn:

“Oh my God cuz, no cuz, come on cuz. Not the old head bro.”

The driver of the vehicle, who is recording wants to make his way over to the pawn shop, where Dorn’s body laid, and the vehicle passenger was warning the driver to not get out of the car. The driver responded:

“Come on cuz, that’s somebody’s granddad…give me my thumper.”

The video continues from the perspective of the driver, and he appears to be holding some type of gun, which a “thumper” is a term often used for a firearm. While standing over the deceased body of Dorn, the person taking the video begins to shout at those nearby:

“Over some TVs man?! For real! This is somebody’s granddaddy cuz.”

A group nearby says something inaudible to the person filming, in which the person recording responds with:

“Fuck you n*gga, the fuck you trying to do? You killed this man over some TVs cuz.”

The video in question is difficult to watch, as not only it portrays the brutal aftermath of the riots and looting in St. Louis, but also from the emotion and anger in the young man’s voice seeing the result of a senseless murder.

Our team at Law Enforcement Today has chosen not to show the video out of respect for the family.

The Ethical Society of Police of St. Louis stated the following about the murder of Dorn:

“He was murdered by looters at a pawnshop. He was the type of brother that would’ve given his life to save them if he had to. Violence is not the answer, whether it’s a citizen or officer.”

Dorn had spent 38 years in law enforcement with the St. Louis Metropolitan Police Department, from 1969 up until 2007 when he retired. It was said that Dorn was familiar with the owners of the pawn shop that he was murdered in front of, and would often respond to alarm calls even in his retirement.  

Sadly, that latest alarm call that he responded to on June 2nd led to him being murdered.

A sign was posted in front of the scene where Dorn was murdered that read the following:

“Y’all killed a black man because ‘they’ killed a black man??? Rest in peace.”

The wording on the sign posted in front of Lee’s Pawn & Jewelry are some of the hardest hitting words that are indicative of what has become of these riots.

Police have not identified any suspects in the killing of Dorn and are currently offering a $10,000 reward for anyone who has information on who the suspects involved may be.

This man’s life mattered, and he put his life on the line until the very end for what was right.

This man’s life was taken because criminals wanted to loot and riot, under the guise of this now heavily manipulated movement ongoing.

This man deserved better.


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