this is typically the hottest period but living up to its reputation. >> in miami a lot of rain. >> no tropical storms brewing and the peak is quickly creeping up -- >> august? >> usually last week in august first week in september. >> you know what happens in miami? mosquitos the size of mid-sized suvs. >> they don't come after me. >> a dangerous falling tree and famous lion killed. let's zoom through today's top stories, a new look at the chattanooga gunman who shot and killed service members earlier in the month. this is dash cam video during a dui arrest three months ago. you can see him undergoing a sobriety test and being arrested for dui, one ever several encounters he had with police.