Earlier today there was a shooting in Indiana, where a student and teacher were both injured. May 18th, 2018 there was another shooting in Texas where there were 10 fatalities and 10 injuries occurred. CNN has created a list of shootings in 2018 here.
The Statistics of School Shootings
In the Washington Post there was an article that said "the statistical likelihood of any given public school student being killed by a gun, in school, on any given day since 1999 was roughly 1 in 614,000,000. And since the 1990s, shootings at schools have been getting less common.