1.   As he turned to face the officers again, the fourth officer, whom the park police refused to identify, fired two shots.

2.   A few times, they were caught, and the park police showed up, shooing the teenagers off.

3.   A spokesman for the park police said the officer who shot Corniel had been put on administrative detail pending a review of the shooting.

4.   But park police are patrolling the area to keep visitors from inside the monuments.

5.   By late afternoon, the park police had no official estimate of the size of the crowd.

6.   The most they may notice at some locations is an increased presence by park police and rangers.

7.   The man, Marcelino Corniel, had brandished a knife before being hit by two bullets fired by the officer, whom the park police have declined to identify.

8.   The park police said they had indeed stepped up patrols.

9.   The park police have primary jurisdiction over Ocean Beach, the favored spot in San Francisco for gun enthusiasts who like to fire their weapons on the holidays.

10.   The report of park police called the act a hate crime.