Photos: Carlsbad school shooting

A parent tows a wagon with a box marked “tissues” as she and her children walk into Kelly Elementary School in Carlsbad.  (Don Bartletti / Los Angeles Times)

A mother and her son walk over crime-scene markings on Hillside Drive next to the school playground fence. It was here that suspect Brendan O’Rourke was tackled and held after he fired a handgun into the playground, injuring two second-grade girls.  (Don Bartletti / Los Angeles Times)

As students begin to return to school Monday morning, principal Tressie Armstrong embraces an unidentified parent whose child was among those on the playground when a gunman fired shots.  (Don Bartletti / Los Angeles Times)

The Ford sedan driven by suspect Brendan O’Rourke, 41, at the curb on Hillside Drive next to Kelly Elementary School.  (Don Bartletti / Los Angeles Times)

A gasoline can is seen on the grassy playground. Suspct O’Rourke allegedly was seen carrying the can while firing a handgun at students. O’Rourke is expected to be arraigned this week on numerous counts of attempted murder.  (Don Bartletti / Los Angeles Times)

Relieved parents pick up their children from a gathering point at Laguna Riviera Park in Carlsbad.  (Mark Boster / Los Angeles Times)

A woman who identified herself as a teacher’s aide is escorted off the campus of Kelly Elementary School. Shortly after noon, the gunman drove up to the school, said Lt. Kelly Cain of the Carlsbad Police Department. Armed with a .357 magnum handgun, Cain said, the assailant stepped onto the sidewalk next to the playground and started shooting “wildly,” firing five or six shots.  (Don Bartletti / Los Angeles Times)

Parents escort their children from Kelly Elementary School after the shooting.  (Lenny Ignelzi / Associated Press)