Two years ago today, as the Cheyenne Frontier Days pancake breakfast was going on just blocks away, police were called to an armed robbery at The Coin Shop at 510 W. Lincolnway.

Officers arrived to find 67-year-old Dwight Brockman and 76-year-old George "Doc" Manley had been shot to death.

Since then, thousands of man-hours have been put into the high-profile case, but no arrest has been made.

"We are continuing to investigate this case," said Officer Kevin Malatesta. "We don't have a whole lot of new information to put out to the public, but I can tell you, as recently as this week, our detectives have been following up on specific leads."

Malatesta couldn't say what those specific leads were, but says police are "still optimistic" they can solve the case.

"For the type of case that this one is and the way it occurred, this kind of time frame is fairly typical," said Malatesta. "It does take a lot of time to gather evidence, to do interviews, to talk to everybody involved and establish a case."

"We want to make sure that we do our due diligence, follow up on every lead (and) turn over every stone," he added. "That way we have a positive resolution at the end of this and can bring closure to the family."

Police are asking anyone with information about the murders to call the Laramie County Combined Communications Center at (307) 637-6525 or Crime Stoppers Silent Witness at (307) 638-TIPS.

There is currently a reward of $11,000 for anyone with information that leads to the arrest and conviction of the person who committed the crime.