I also interviewed radio personality Mitch Michaels about this once. Mitch was there, and this is how he recalled that day...
I was working for a radio station in Cleveland at the time, as a board op, and doing some stringer reporting for them while I was at school, and the whole weekend before the shooting had been crazy. There were sit-ins and protests, and helicopters hovering, tear gas in the air, and spotlights, it was like a movie set. The protesters burned the ROTC building on Saturday night. The National Guard members were wearing gas masks and were pounding everyone. They couldn’t see anything out of those masks. I had a press pass, and they pounded me too. On Monday I was in the car with my wife on the way to the dentist when I saw all the commotion. Police cars, sirens, people running all over, complete mayhem. I pulled over to the side of the road, locked the door, and told my wife not to move, and I went over to see what was happening. I got there just as they were carrying the girl into the ambulance. It was around 12:30 or so. By 2pm, it was completely deserted. They had closed down the campus and sent everyone home. It was eerie.