In this March 7, 1965 file photo, state troopers use clubs against participants of a civil rights voting march in Selma, Ala. At foreground right, John Lewis, chairman of the Student Nonviolent Coordinating Committee, is beaten by a state trooper. (AP Photo/File)

Photos: Selma in March 1965

March 7, 1965 — 50 years ago — came to be known as “Bloody Sunday” in the civil rights movement.

This picture, taken by Eric Brown on Feb. 20, 2015 along Hwy 99W in King City, apparently shows a TriMet driver reading his tablet. TriMet is investigating.

Was this bus driver reading his iPad?

TriMet has launched an internal investigation into whether one of its drivers was reading his iPad while behind the wheel of a bus in King C…