Candles, flowers, and balloons were placed on Milton Avenue near Solvay in memory of Sheppard who was killed early Saturday morning.
Police found Sheppard in the front of the Solvay Supersaver market with stab wounds.
He was taken to Upstate University Hospital where he later died.
Anyone with information should call police at 442 - 5222.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.