An 18-year-old woman was pronounced dead at the scene, and a 20-year-old man was pronounced dead later at a local hospital. Nine of the people injured were transported to hospitals from the scene, while the other 20 victims walked into various hospitals in the area. A suspect has not been arrested in connection with the mass shooting.
To expand your analogy.
As an Australian I am equally likely to be hit by lightening but about 1,000 times less likely to die by gunshot than if I was American.
The situation of gun violence in the USA is very serious and bad analogies (comparing random nature to deliberate human actions) that seek to dismiss it as a common issue when it is not are not helpful at all.