The season 's penultimate episode " Reunion " , which dealt with a string of murders at Haven High School , and the season finale " Thanks for the Memories " were originally slated to air on December 14 and 21 respectively but Syfy pulled both episodes from the schedule and moved them to January 17 , 2013 as a back-to-back season finale with repeats of the '' Eureka '' and '' Warehouse 13 '' holiday episodes airing in their place due the Sandy Hook Elementary School shooting that occurred on the day " Reunion " was going to air
Sandy Hook Elementary School shooting
Sandy Hook Elementary School shooting
Haven (season 3)