georgetown law professor, msnbc analyst, mr. butler, it's good to see you tonight. ahmaud arbery's mother makes an interesting case that the department of justice, the federal government, doesn't often pursue these cases. in fact, it's the first time one of these has been successfully prosecuted according to ben crump in the state of georgia ever. why is that? >> so, ali, this prosecution was symbolic in part because the three defendants had already been sentence to life in prison in the state murder case. the federal convictions are insurance in the unlikely event that the state convictions are overturned. more importantly, the jury verdict represents an official -- an official recognition that mr. arbery was killed because he was black. race didn't come up in the state file, because the prosecutors didn't have to prove racial animus, in order to lend their