Old Lyme — An Old Saybrook man is facing charges after he allegedly drove his pickup truck in a threatening manner toward a pedestrian on state Route 156, according to police.

Eric Lintelmann, 48, of 17 Ayers Point Road, Old Saybrook, was charged Aug. 10 on a warrant with first-degree reckless endangerment in connection with the incident.

In an arrest warrant affidavit, Officer Wayne Collins said the run-in occurred about 5 p.m. May 5. According to Collins, 49-year-old Jeff Alfieri told police he was walking north on the southbound shoulder of Route 156 near Smith Neck Road when he heard a vehicle horn. When Alfieri turned around, he told police, he saw a white Chevrolet pickup truck traveling northbound toward him.

Alfieri told police the truck driver crossed over the yellow centerline and came about six feet into the southbound lane as it neared. Alfieri, who told police he feared for his life, jumped out of the shoulder area in reaction.

According to police, Alfieri identified the driver as Lintelmann. Alfieri said Lintelmann is the husband of Alfieri’s friend Paige Doerrer, 37, but the couple is in the middle of divorce proceedings. Alfieri did not provide details about his connection to Doerrer.

When police contacted Lintelmann later in May, the affidavit states, he acknowledged having seen Alfieri on Route 156 on May 5. Lintelmann told police Alfieri gave him the middle finger and he gave one in return. Lintelmann said he never drove over the centerline or toward Alfieri, according to the affidavit.

Lintelmann is due Friday in New London Superior Court.