PITTSBURGH — The parents of a Western Pennsylvania man accused of shooting a fellow armored car guard to death and stealing $2.3 million last month have made a public appeal to their son to surrender to authorities.

“Ken, we want you to come home. Please call me,” said Renee Konias, the mother of Kenneth Konias Jr., 22, who has been on the run since the Feb. 28 shooting and robbery in downtown Pittsburgh. He is the subject of a nationwide manhunt by the FBI.

Kenneth Konias Sr. declined to say anything Wednesday evening beyond a family statement read by attorney Charles LoPresti that called on Konias Jr. “or anyone with knowledge of his whereabouts” to call either the family home or his mother’s cell phone or LoPresti’s office to make arrangements to surrender “so that no one is harmed in the continuing national search effort for you.”

“Your parents have been through enough. Everyone involved has suffered greatly. The time to come home is now. Please listen to your parents and contact them immediately so that this nightmare can come to an end,” LoPresti said in reading the statement.

The suspect’s parents also offered “their deepest and most sincere prayers and condolences” to the family and friends of 31-year-old Michael Haines. Haines was found shot to death in the back of the Garda Cash Logistics truck.

“There are no excuses nor is there any rationale that justifies the taking or the loss of human life,” the statement said.

Konias is charged with criminal homicide, theft by unlawful taking and robbery. Authorities say they recovered about $275,000 left behind, including about $250,000 stashed under a car at the Dravosburg home he shared with his parents and about $24,000 found a day earlier at the grave of a family member.

Officials say Konias called friends and family after the killing, and asked one person about extradition laws in Canada and Mexico. The FBI added a poster of Konias to its Facebook page, and agents said they are getting tips about Konias from various cities.

Garda also is offering a $100,000 reward in the case.