(Portland, OR) -- Multnomah County officials say a 56-year-old man found dead Saturday may be the latest victim of Portland's record-setting heat wave. The man was discovered in the 97209 zip code, which covers Old Town Chinatown, the Pearl District, and Nob Hill. His cause of death is still pending confirmation, but investigators suspect heat played a role. This marks the third suspected heat-related death in the county this year.