The Associated Press reported Wednesday that the man has been identified by demonstrators as as Alfred Olango, a refugee from Uganda. Police have not officially released the man's identity.

According to the San Diego Union-Tribune, El Cajon police responded to multiple reports of an "erratic" pedestrian walking in traffic near a strip mall around 2 p.m. PDT Tuesday. Police said late Tuesday that it took them 50 minutes to respond after receiving the first call, presumably from a woman who said she was the man's sister, KNSD reported. The Associated Press reported Wednesday that police shot the man a minute after arriving to the scene.

At a news conference late Tuesday, police confirmed that "no firearm was recovered" from the scene, according to KMFBKSWB reports that a witness said the man was unarmed and mentally ill.

>> PHOTOS: Protests after El Cajon, California, police shooting

KMFB initially reported that the man was critically injured and taken to the hospital, although the woman who identified herself as the man's sister said he died at the scene. Police said late Tuesday that the man was dead, KMFB tweeted.

1. Some bystanders said the man had his hands up. While describing the incident to KNSD, witness Michael Ray Rodriguez said, "The man's hands are up. No shirt. He didn't have no shirt."

El Cajon police denied those claims in a tweet Tuesday night, saying that in "video voluntarily provided by a witness, the subject did NOT have his hands up in the air."

2. A now-viral Facebook Live video captured the aftermath of the shooting. In the 25-minute video, posted by Rumbie Mubaiwa, a woman cries that she had called police to help the man, who she said was her brother.

"I just called for help, and you came and killed him," she says.

>> Watch the video here (WARNING: Graphic content and language)

3. Police have denied claims that officers confiscated cellphones from people at a nearby restaurant. A woman identified only as Maria told KNSD that police took cellphones from employees at Los Panchos restaurant and told workers "not to talk to anyone."

El Cajon police tweeted, "We ask that the community please be careful about reacting to inaccurate information. No phones were confiscated from anyone at the scene."

"That witness voluntarily provided their phone to the police department and gave written consent for the officers to view the video," the department said in a press release. "Investigators have been able to download the video. This was the only phone provided to officers in this investigation."

4. The officers involved are being placed on administrative leave. According to KMFB, that includes the officer who fired at the man and the one who used a Taser. Each officer has at least 20 years of police service, KMFB reported.

5. El Cajon police do not yet wear body cameras. KNSD reported that the City Council recently approved a plan to buy body cameras, but Davis said they likely won't be used until next year.