Everett's Music Barn in Suwanee has a rich history, but it has roots in a grim chapter of Gwinnett County police corruption.

"Judas Deputy," a new true-crime book written by former Atlanta Police officer Mackie Carson, probes the April 1964 slayings of officers Jerry Everett, Jessie Gravitt, and Ralph Davis in a case that turned out to be the work of corruption inside the Gwinnett department.

Carson held a book signing Saturday (December 8) at Everett's Music Barn. Jerry Everett's brothers, Randall and Roger Everett, began the barn and musical legacy in the wake of the slayings.

-- Do you recall the Gwinnett Police slayings of 1964? Share your memories in the comments below.

It's Carson's first book, and he said he wrote it because he was a rookie police officer in Atlanta when the slayings occurred. "It always stayed with me," the Newnan resident recalled. "It was a project I always wanted to do."

For more on this article, visit Suwanee Patch.