What an upsetting day.
As we previously reported, four people were shot in a elementary school shooting in San Bernardino, California on Monday.
It's believed the crime was the result of an apparent murder-suicide. Reportedly, two adults have been pronounced as deceased with two student victims having been rushed to the hospital.
Obviously, this scary shooting has shaken up many people including those in Hollywood, as well as several politicians in Washington D.C., as numerous public figures have since taken to Twitter to weigh in on the situation. Be sure to take a look at their reactions (below).