Three children and a teacher killed by 16-year-old at Oregon primary school

• "We are stunned and heartbroken by this senseless tragedy," Bend-La Pine Schools Superintendent Steven Cook said in a statement.
• "No words can adequately express the grief our community is experiencing.
• "Local law enforcement responded to reports of an active shooter at Silver Rail Elementary in Bend, Oregon, at 12:59 local time, Bend Police Department spokeswoman Sheila Miller told reporters.