Quincy Police are investigating damage to a custom headstone in Calvary Cemetery at 1730 North 18th.  The headstone was a memorial for Blake Genenbacher, who lost his life to cancer last August 26 at the age of 21.Police and the Genenbacher family are requesting your assistance in providing information on this incident. The Genenbacher family is also offering a reward for information that leads to an arrest for this offense. Contact Quincy Police or Quincy Regional Crime Stoppers. Police received the criminal damage report on Wednesday.