On the fifth year mark of the horrific mass shooting that left dead 20 children and six adult staffers at Sandy Hook Elementary School in Newtown, Conn., the tragedy is being recalled and its victims honored by Hollywood celebrities, politicians and many of the journalists and pundits who covered the massacre.

CNN’s Jake Tapper is tweeting remembrances of each and every victim, while stars like Michael Keaton and Reese Witherspoon are holding Washington to account.

Here’s a sample of today’s commemorations: