the jury is going to take the weekend.  They haven't been able to reach a verdict yet.
It just takes ONE person on the jury believing that Hernandez was present, but not the shooter, and he WALKS.  
It's day 3 of jury deliberations, and that's not a good sign.  If it was a "we know he's guilty, let's make it look good", they'd render verdict on Friday.  So they're still torn.  That's a big deal.