I'm not sure how this works in college football towns but is it possible that NBPD could have given Flood a heads-up that NBPD brought in some players to find out about the fight or about the 3 (I repeat 3) armed break-ins that Johnson and Boggs were involved in?
I posted this scenario in zappa's thread, but may belong here. Perhaps someone that does criminal law or law enforcement can chime in, but I think Flood may have been given some information, but not a lot such that he could do nothing more than wait.
What if scenario (assume you are Flood here):
Investigator: Coach, the 4 kids on your current team and 2 former players are being investigated.
Coach: For what
IN: Armed robbery and assault
C: Definitive?
IN: At this point it is an investigation
C: Who? Could they be arrested?
IN: We cannot say who as we are investigating, but yes, they can be arrested.
C: When?
IN: Back in April.
C: If they are charges, when will that be?
IN: When our investigation is complete.
C: When will that be?
IN: We don't know yet.
C: Is it possible that the investigation does not turn up anything?
IN: Yes
C: What is likelihood of that?
IN: We cannot say. There is an investigation.
C: Is there a chance they could be cleared?
IN: Yes, if our investigation concludes as such.
It is August 1. You are Coach. What do you do for preparations and practice?
If Flood knew anything, it may be along the lines above. Today, we are all Thursday afternoon quarterbacks, but on August 1, we knew a lot less. Decide.