Hernandez's arrest isn't likely soon; If the police had a witness, or solid evidence, they would have already issued a warrant.
Hernandez had his house professionally cleaned, destroyed a hard drive, and surrendered a smashed cell phone that was likely included in the probable cause search warant. It will be interesting if the police try to pressure him with an obstruction charge but your property is yours to destroy absent a warrant. He's lawyered-up, and the forensics will be telling