As this is a sensitive topic, and I've been forced to remove the footage from Reddit, please put useful updates below. I'll try to compile what I can.
Earlier Events
Initial incident of initial shooter firing at a minimum of 1 individual/s . NSFW: Head injury
Footage of a reprisal attack on one of the shooters. NSFW: Likely death from shooting with AR at close range
Reprisal attacker appears armed by /u/Kirara
Footage of one of the reprisal attacker's injuries while being apprehended by the police. NSFW: Grievous bodily injury.
Elijah Schaffer's ad-hoc interview with a witness after speaking to police. Both the witness and Schaffer suspect that the group were BLM supporting "Boogaloo Boys"
Compilation & Analysis Video by Twitter user V4Volk
Analysis comment by NoEyesNoGroin (Reddit)
This looks like it may have been BLM on BLM barbarity. Tl;dr - the car lot being protected by armed people is apparently owned by a BLM lowlife. BLM started smashing up cars and they started fighting amongst each other. BLM twitter ofcourse immediately claimed it was caused by "white supremacists".
Edit: 2 people are dead, 3 people shot in total
Tim Pool's morning commentary & analysis:
Reuters reports that the shooter is identified as 17 year old Kyle Rittenhouse, who has been charged with First Degree Intentional Homicide by the state of Illinois.
Tim Pool points out that the shooter was arrested as a fugitive. He may not have been arrested by police that night.
Timeline & Map of events:
[–]Kirara 6 insightful - 1 fun6 insightful - 0 fun7 insightful - 0 fun7 insightful - 1 fun - (0 children)
[–]DomitiusOfMassilia⬛[S] 3 insightful - 2 fun3 insightful - 1 fun4 insightful - 1 fun4 insightful - 2 fun - (0 children)
[–]scrubking 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 0 fun2 insightful - 1 fun - (0 children)