30 Years Later, Cops Still Seeking Long Island Man Wanted For Killing His Son and His Friend

New York State Police are marking "Cold Case Tuesday" by amping up efforts to crack a double murder case from 1986.

According to police, the search is on for William Peter Fischer, who is "wanted for the murder of his 19-year-old son, Billy and his friend, Nancy Hyer," authorities said.

On Dec. 21, 1986, the bodies of Billy Fischer and Nancy Hyer were found in the trunk of Hyer’s vehicle, police said.

An investigation revealed Billy Fischer had been shot 18 times, Nancy, stabbed twice, police siad.

Authorities say they believe that on Dec. 10, 1986, Fischer invited his son to his Southampton home.

"It is believed that Billy, who suffered from cystic fibrosis, asked his father for money to help cover mounting medical bills. The following day, Billy contacted Nancy Hyer, asking her to come and pick him up from his father’s house. It is believed that Fischer shot Billy, then stabbed Nancy to death, putting the bodies in the trunk of Hyer’s car and leaving it at the Southampton Elks Club," police said.

Police searched Fischer’s home and found blood and fibers matching the victims in the vacuum cleaner and bullets in the walls, police said; Luminol sprayed throughout the house also revealed blood had been cleaned off the walls.

On Feb. 25, 1987, William Fischer was indicted on two counts of second degree murder and a warrant was issued for his arrest, police said.

Then, on Feb. 27, 1987, Fischer’s abandoned vehicle was found at New York’s Kennedy Airport, police said.

An investigation has failed to locate Fischer to date, police said.

Fischer is 72 years old, and described as 5-foot-11, 185-200 pounds with salt and pepper hair and blue eyes, police said.

Anyone with information on William Peter Fischer’s whereabouts is asked to call New York State Police at 631-756-3300.