Image Credit: @michellemalkin/Twitter 
Update (2230ET): The shooter has been reported to be a bodyguard for a local news reporter with no affiliation to Antifa, according to the Denver Police.
The private security guard in custody was contracted through Pinkerton by 9NEWS. It has been the practice of 9NEWS for a number of months to contract private security to accompany staff at protests.
DPD originally took two people into custody and later found the second individual, a 9NEWS producer who works in the investigative unit, was not involved in the incident. The producer is no longer in police custody and is not a suspect. –9News
Update: Further investigation has determined the suspect is a private security guard with no affiliation with Antifa. Additional information will be released as it becomes available.
— Denver Police Dept. (@DenverPolice) October 11, 2020
Demand the @DenverPolice disclose a picture of the shooter's tattoo pic.twitter.com/vDLMCxCcxO
— Apistevist (@Apistevist1) October 11, 2020
A BLM/Antifa supporter shot and killed a conservative counter protester in Denver during a competing rallies on Saturday, multiple videos show.
The shooting occurred shortly after the “Patriot Prayer” rally and the “Antifa-BLM Soup Drive” kicked off near the Civic Center.
According to someone on Reddit reporting to be an eyewitness, the shooting erupted after an argument between a Patriot protester and a BLM/Antifa militant.
“One person was telling the other, ‘Go ahead, mace me bro. Mace me! What are you gonna do? Why don’t you mace me?!’ More pushing. A burst of orange mace erupts and the BANG one single shot,” he wrote. “The larger man fell backwards and the shooter held his hands and gun (still in hands) up in the air. Police rush in, arrest the shooter and surround the body on the ground. They then clear everyone out and that’s when I left.”
Antifa/BLM was seen harassing police just following the shooting.
Local media reported a similar chain of events, and that the shooting of the Patriot Prayer member has resulted in a homicide investigation.
From The Denver Post:
A man participating in what was billed as a “Patriot Rally” that also included a presence of self-described BLM-Antifa protesters, sprayed mace at another man and that man shot him with a handgun. Ambulances responded to the scene. Police said Saturday afternoon they were working on a homicide investigation.
Less than a month before the presidential election, left- and right-wing groups on Saturday faced off during rallies around Civic Center. An hour in, police had fired what appeared to be pepper balls after people from the leftist group started rattling a barrier headed into the amphitheater.
Other video shows the moments leading up to the shooting, where the far-left agitators are seen throwing soup cans at police.
Two people are reportedly in custody.
This comes just after Antifa executed a Trump supporter in Portland, Oregon in August.
The leader of the Wolverine Militia behind the attempted kidnapping of Gov. Whitmer was erroneously labeled by the leftist MSM as a Trump supporter and tried to hold the president accountable for his actions.