VIDEO: The Phoenix Fire Department is mourning the loss of one of their own who passed away after battling an aggressive form of cancer. According to a statement from the United Phoenix Firefighters, Rick Telles passed away Thursday afternoon after battling an aggressive form of cancer he contracted as a result of being a firefighter. The group said Telles' passing will be considered a line of duty death, and that Telles will be honored accordingly in his memorial services, which are currently in the planning stages. "We have lost a great Firefighter and friend but are blessed by his memory which will live on each day his brothers and sisters answer the call just as passionately as he did," the statement read. "Please keep the Telles family in your thoughts as they navigate this difficult time."