Shooting at Lone Star College in north Houston

Police collect evidence after the shooting at Lone Star College’s North Harris campus.   (Patric Schneider / Associated Press)

Ana Leal, left, embraces Lone Star College student Sabrina Cuellar after she evacuated the campus in the wake of the shooting. With them is Cuellar’s mother, Maria, who arrived to drive her daughter home.   (Brett Coomer / Associated Press)

Lone Star College students sit on a street corner after they were evacuated from the North Harris campus in Houston, where a shooting injured at least three people.   (Brett Coomer / Associated Press)