OKLAHOMA CITY, OK — On November 21, 2017, police discovered the bodies of Virgil Ingraham, 81, and Rowena Ingraham, 84, dumped in Tiger Mountain park in eastern Oklahoma. The elderly couple had been strangled, with Rowena also suffering a fatal “blunt force trauma to the chest.”

Investigators then searched the Ingrahams' residence and reportedly discovered a blood trail leading from the house to the garage. Inside, officers say they found bloodstained clothes in a washing machine, garments they believe belong to the Ingraham’s ex-con grandson, 45-year-old Harlon Lee Foss.

Authorities could not, however, locate Foss himself — and he has remained at large ever since.

After getting released from prison, Harlon Lee Foss reportedly moved in with his grandparents. According to coworkers, Foss hated the situation, complaining frequently about the Ingrahams restricting his freedom and his getting “blamed for everything that went wrong in the house."

Then suddenly, the Ingrahams turned up murdered, and Harlon Foss was nowhere to be found.

In February 2018, the Oklahoma State Bureau of Investigation (OSBI) issued an arrest warrant for Harlon Lee Foss. Later that month, Foss was reportedly sighted near Aquatic Park in San Francisco.

Authorities describe Foss as an experienced fisherman and outdoorsman who may have been living in the park.

Foss should be considered armed and extremely dangerous.

TRAITS & CHARACTERISTICS:

• Weight: 230 pounds
• Height: 5 feet 9 inches
• Sex: Male
• Race: Caucasian
• Hair: Brown, but balding
• Eyes: Hazel
• Date of birth: December 4, 1972
• Location: Oklahoma City, OK
• Last seen: January 10, 2018 in San Francisco
• Aliases: Harlon Foss, Harold Lee Foss, Hawkin Lee Foss, Lee Foss
• Known to enjoy fishing and could be utilizing local lakes

If you know anything about the whereabouts of Harlon Lee Foss, or if you have any other information regarding this case, please contact our hotline (833-3-PURSUE) or submit a tip online.

For more on this case, watch the “Crocodile Tears” episode of In Pursuit With John Walsh on Wednesday, February 6 at 10/9c on Investigation Discovery! Or catch up on ID GO.

Read more: Northern California Regional Intelligence Center , San Francsico News, OKC Fox 25, Muscogee Phoenix