Haney's body was found in an open RV park-and-ride area adjacent to Highway 16.

This was less than 3 miles from where Haney is reported to have been living, which is Plymouth, CA.

Plymouth has a population of less than 1,000 people.

The Sacramento Bee has more information on how Haney's body was discovered:

A former longtime Department of Homeland Security official, described as a whistleblower who penned a book criticizing the Obama administration’s handling of terrorism, was found dead Friday morning in Amador County, authorities said. Philip Haney was identified as the man found dead adjacent to Highways 16 and 124 near the city of Plymouth. Haney, 66, was found on the ground with a single gunshot wound, according to two news releases from the Amador County Sheriff’s Office. In an initial release Saturday, the Sheriff’s Office reported that Haney “was deceased and appeared to have suffered a single, self-inflicted gunshot wound,” and that a firearm was located next to Haney and his vehicle.

CBS Sacramento confirms Haney's death and reports that requests have been made to the FBI to get involved: