OLEAN — Rodger Tripp, production supervisor for Cutco Cutlery Corp., will retire effective March 1 after 23 years with the company. Tripp first joined Cutco on Aug. 20, 2001, as a high speed buffer.

He bought the knife he wanted to use, he read information on how to stab people, he saw publicity for a children’s event at the Hart Space and decided to kill as many as he could. “I’m also ...