One teacher and three children killed after Griffin J John II, 16, barged into elementary school and began shooting

• Oregon elementary school shooting: what we know so far

The 16-year-old who barged into an elementary school in Bend, Oregon, and unleashed a barrage of gunfire that killed a teacher and three children was a former student at Silver Rail elementary, officials confirmed in a Friday press conference.

The heavily armed shooter, identified as Griffin J John II, climbed over a fence and onto the school’s property before shooting through a set of locked doors to enter the building.

Father of toddler killed in Erie mass shooting says reported gunman never seemed distressed or out of the ordinary

The man who killed eight people, before turning the gun on himself, in a mass shooting in a home in Erie, Pennsylvania, on Friday was a grandfather who had not shown signs that he was capable of such violence, according to people who knew the shooter.

A man whose toddler was among those killed said on Sunday that the man never seemed distressed or out of the ordinary, the Associated Press reports.