Background: Murder is a violent social behavior. which stems from various reasons. The purpose of the present research is to evaluate the reasons for murder from the perspective of killers. Methods: The present research is a qualitative study which involves 23 male killers sampled purposefully from Adel Abad prison in Shiraz. https://www.sahmbuffy.com/product-category/metal-hailde-and-son-gear-tray/