 But Caltaviano said Trump may have saved his own life by ducking after he was grazed in the ear by a bullet. Secret Service agents shot and killed the man who tried to assassinate Trump. He's identified as 20-year-old Thomas Matthew Crooks of Bethel Park, Pennsylvania. For more on this story, log on to WFMD.com. The region is under a heat advisory for today. Temperatures are expected to hit 102 degrees with a heat index of 109. Dr. Clifford Mitchell with the Maryland Department of Health says if you're outside, you need to be on the lookout for warning signs of overheating.