CINCINNATI -- Hope Dudley hopes playing cards will lead to her son's killer.
The cards have photos of cold-case homicide victims; Dudley's son, the victim of a drive-by shooting in 2007, is on the five of hearts. No witnesses came forward, and, according to the Hamilton County Sheriff's Office, the driver and other passengers in the car claimed they saw nothing.
Since then, Dudley's said, life hasn't been the same. And it's not just the grief of parent losing a child.
"You don't let people just walk up and hug you like you use to," Dudley said. "You question friends that he had that don't come around. You search for justice everywhere you can."
Dudley put up flyers, wrote letters and asked for help. Through her organization, U Can Speak for Me, she also made bookmarks of cold-case victims.
READ MORE: Mom on mission to find son's killer
Then Thursday, the sheriff's office announced Dudley's playing-card decks are being sold for the first time in its jail commissary.
"Conversation is the key," Maj. Charmaine McGuffey said. "We know that. The conversation starts with these cards."
"That's like one stop before they go to prison, so if they have any information, they can leave that information here in Cincinnati," Dudley said.
Watch the video above to hear from other homicide victims' family members.
It took seven years for Dudley to complete the deck. Each card also has the place where each person was killed, along with a phone number people can call anonymously to give tips.
All money from the commissary's card sales will go back to Dudley's organization.