Paul Wolf remembers receiving the disturbing news 21 years ago.
"I was in Belgium and my friend told me, 'there's been an accident at home...you need to call home," Wolf said.
But police said what happened to Wolf's brother, 43-year-old Dale Wolf, and Dale's girlfriend, 46-year-old Lynne Stansfield, was no accident.
Police said someone wanted them dead.
"They were both handicapped," Paul Wolf said. "They were no threat to anybody at all."
It was December of 1993. Police said inside the couple's home on Linton Hill Road outside Duncannon, someone shot Dale and shot and stabbed Lynne. Their bodies were then set on fire in an apparent attempt to conceal evidence.
"It was definitely a gruesome scene, a terrible crime," State Police Trooper Robert Hicks said. "The fact that this individual is still out there on the loose...it's alarming."
At the start, investigators could find no obvious reason the quiet, law-abiding couple was targeted. They had no explanation for such a vicious, personal attack.
"She would do anything for you. She was a beautician most of her life," Paul Wolf said of Lynne.
He described his brother as quiet and peaceful.
"He worked on cars. He went to the Legion. His routine was pretty much solid," Wolf said. "Everywhere I go everybody's always bringing up that old question; what's new with the case? And you're at zero for answers."
But police have not stopped searching for the killer. They released new information to abc27 hoping for a break in the case.
Police said a yellow, J.C. Penny 10-speed bike was found in the driveway of the house. They believe that is how the murderer got to the home that night.
And they believe the suspect left on foot.
Police said about a year after the crime, a neighbor, less than a mile away on Route 274, found Dale's gun hidden in a pine tree. They believe it was the murder weapon.
"We feel like there are people out there that have information that are scared to come forward and we can understand their hesitation," Hicks said. "But we're dealing with a case that is over 20 years old."
"Don't be scared," Paul Wolf implored. "If you know something, say it. Tell somebody."
Paul still lives in the house where his brother was killed. He says there are more good memories here than bad.
And he hopes that someday soon, he'll finally have the answer about what really happened there.
"It means the world to me," he said.
Anyone with information about the case is asked to contact Trooper Donald Chewning with the Pa. State Police at 717-567-3110.