Murder Mystery: Crime Stoppers, victim's family offer $10,000 reward to help solve Grant County pipe bomb killings

It’s been more than eight years since homemade bombs killed two Grant County men within 24 hours.

Now, thanks to the family of one of the victims, this murder mystery is heating up. They're working with Tri-Cities Crime Stoppers to offer $10,000 for information leading to the arrest of the suspect.

Washington’s Most Wanted is teaming up with Crime Stoppers and Special Correspondent Rex Carlin with KNDU in the Tri-Cities, who spoke to the grieving family about their quest for justice almost a decade in the making.

On the morning of August 2nd, 2008, 69 year old retired electrician, Bill Walker, found a battery charger by his house. He carried it into his shop and plugged it in. The charger, which had a pipe bomb hidden inside – exploded. Bill was pronounced dead at the scene.

"He was the type of person that would do anything for anybody and did do anything for anybody,” says his granddaughter, Avery Guenther, who lives in Camden, Ohio.

Less than a day later, 53 year old Javier Adame's girlfriend found a police scanner outside his home. Javier went outside and picked it up. He carried into the house, plugged it in and suffered the same fate as Bill Walker.

Investigators determined after careful examination that these two cases -- so close, both in time and proximity to each other -- were definitely not a coincidence. "We had explosive experts from the ATF and the FBI examine both the devices that were used to kill Mr. Walker and Mr. Adame,” says Kyle Foreman with The Grant County Sheriff’s Office. “The explosive experts determined that the bombs were made by the same person. They were very sophisticated, they were hidden inside items that would have been attractive to the recipients, and were made so that when they were plugged into the wall, they detonated."

For the past eight years Bill Walker's wife, Dorothy, and other relatives have raised funds to be able to post a reward for information in regards to the crimes – and now they are able -- to the tune of $10,000.

Bill's family hopes even after all these years... A monetary incentive could help bring someone forward who previously stayed quiet.

Special Correspondent Rex Carlin asked the family what they had to say to the people who might be watching, who might know something? "We want any information, no matter how small. We need help. We just want someone to speak out if they heard something or they know something. Our family lived there a long time and we were good people to the state of Washington. I want them to be good to us. If they've got any answers, no matter how small, we want them."

If you have any leads or information related to the pipe bomb murders of Bill Walker or Javier Adame, use the P3 Tips App to submit your information to Crime Stoppers, or call the anonymous hotline at 1-800-222-TIPS.