On May 1, this is the news? 1 dead, and 5 injured?
May = 15

The date can be written 1/5, or 5/1.
Mass Shooting = 51

The news comes on the 121st day of the year.
Jackson, Mississippi = 121

https://www.cnn.com/2022/05/01/us/mississippi-mudbug-festival-shooting/index.html