The latest update with the red pickup truck assault (as far as i am aware) is that the authorities are working to apprehend the driver.
Beyond that it is a private legal matter between the victim, his attorney, and the police. While we are all concerned for cyclist safety and hope for a swift resolution (and for the jerkwad to be nailed to the wall), we just have to wait for more info.
Let’s be fair. Remember when everybody was upset that the guy who hit-and-ran Dan Yablonsky wasn’t arrested? It turned out the police were waiting until Dan had recovered enough to testify. So, please, assume that the police want to arrest the bad guys (that’s their job, and I think they like catching people), and prosecutors want to win cases against them. There just might possibly be a reason things take longer than we’d like.