daughters today in colorado springs. evan ebel went out in a blaze of gunfire two states away in texas, where ever since investigators have been poring over physical evidence. tonight, they have some answers and they look pretty solid. casey wian joins us. what's the latest in this investigation? >> reporter: well, that's right, anderson. it is probably the most solid piece of evidence that they have uncovered in this investigation. the el paso county, colorado sheriff's department confirming that ballistics tests provide a conclusive match between the gun that was used to kill tom clements on tuesday in colorado and the gun that was being fired by evan ebel during that shootout that resulted in his death in texas two days later. now the investigation, it is clear, moves to an inquiry into whether anyone else was involved in this murder. el paso county sheriffs say they have no evidence yet that anyone else was, but they are clearly looking into that possibility. >> i know there was a shuffle in the prison system about a month ago. 211 gang members, the same gang