Stopped on a bike ride

This incident happened at Chattahoochee River on Column Drive. I was riding my bicycle while a man ran by me. He screamed out loud "You needed to stay 6 feet away from me.” I stopped because I almost fell off my bicycle. I asked "What was wrong? You screamed at me".” He screamed, "Asian, you needed to stay 6 feet away from me.” I tried to take my phone out, but he grabbed and held my hand to the point that I could not move. I was not able to take his picture. This is a second time he screamed at me on the street.