Gryder said he reviews the case every few months to see if there is anything he missed.
"I've carried this case with me since that day. It is one of those cases that if you're a detective, you kind of look back on it and you work on it from time to time."
Gryder thinks there were several people there that night who know what happened.
"I'm hoping that somebody from that bar is watching me now and they can find it in their heart to come back and say "Hey, I did see what happened. I know what happened and it's time for me to tell the story'."