Gang Dispute at Chief's Super Bowl Rally?

Apparently, like many other shootings in KC, this started as beef between two feuding groups, similar to the shooting at Crown Center last month according to the  KCPD as reported on Fox4. There was a mass shooting at the Chief's Super Bowl Parade yesterday, one person was reported dead, a mom of two and 23 were injured. Two persons have been taken into custody and the threat is reported to have been eliminated but it is reported that there are others responsible and this may have started as a dispute between two groups fighting at the parade. fox4kc.com/news/dispute-led-to-shooting-at-chiefs-super-bowl-rally-police/

But then we have this:

This may have been preplanned with warning signs based on this X post just 2 days before. Did the FBI or KCPD catch this? Another lonely alienated shooter striking out at society? But the KCPD is going with the gang-related violence explanation for now. 

The FBI is asking witnesses to come forward for help identifying the attackers. Here is the public appeal. "We need to hear from anyone who was in the vicinity of the parade shooting today that directly witnessed the shooting incident, has any video of the shooting incident or who was a victim of the shooting who has not yet reported being shot to please call 816-413-3477

"Thanks to our partners at FBI Kansas City for sharing this investigative tool, ANYONE who may have photos or video from today's events are encouraged to submit them to https://www.fbi.gov/kc_superbowl_parade"