Casey Klein’s brothers at the Warren Fire Department are remembering the good times after the firefighter tragically died in an ATV accident. “It would only take you about five minutes of knowing Casey to know exactly the person he was,” said Assistant Fire Chief Bill Monrean. He said the 43-year-old wasn’t just a fellow firefighter — he was a close friend. “Great sense of humor and really good person. Cared about everybody.” Klein had been a firefighter for the City of Warren for 16 years and was in line for a promotion to become a lieutenant. “The guy was willing to go all out all the time,” Monrean said. “He was a firefighter — a true firefighter — and not only that, he was an Air Force Reservist. Served this country proudly.”