The Lexington man has been missing for nearly a month.
The birthday party included a vigil and a balloon release in Johnson’s honor.
Lexington Police said around 7:00 p.m. on December 20, 2013, Johnson was talking to his girlfriend on his cell phone when there was a knock on the door of his North Hanover Avenue home.
He told his girlfriend he would call her back.
He never did.
He hasn’t been seen or heard from since.
Johnson’s family put up a billboard in Nicholasville with his picture asking the public for help in finding the cook at the University of Kentucky.
Events have been held to raise money to help pay for the ongoing search.
If you have any information in the case, call Lexington Police at 859-258-3600 (Case Number: 2013204976).