SNIP “This was significant, because a witness to the disappearance of [murder victim] Amber Costello identified a first-generation Chevrolet Avalanche as the vehicle believed to have been driven by her killer,” a bail application said. Investigators then got more information during follow-up interviews last year with the key witness, whom Harrison had earlier identified as Costello’s pimp who’d seen the Avalanche at the sex worker’s West Babylon home. “We reinterviewed the individual who kind of gave us a better description of Rex Heuermann — saying pretty much that he had bushy hair, these big glasses and was the size of...