The Waco Shooting, something is not right

I'm not a big fan of outlaw motorcycle clubs, but I think something stinks with the McClennen County DA in the Waco shooting. First you can't tell me that all 170 of those people were involved in the fight. How was probable cause determined? Second the police misled the public about the purpose of the meeting saying it was about turf and recruiting, but it can be easily verified on Google that it was a regular meeting of the Coalition of Clubs. Most of the people arrested were in family, veteran, or ministry clubs. Why the lie? Third the DA said on CNN that he was holding these citizens because they were not cooperating with the police. What happened to Miranda and the 5th Amendment? Fourth the 8th Amendment specifically forbids excessive bond, is 1Million not excessive? I'm not a lawyer and I know some of you are so help me out, is this not a clear 42 US code sec 1983 case? And why is this taking so long? I believe most in that jail on this case are innocent.