For some unknown reason, police opened fire on the crowd.

Without a warning shot to turn them back, the front line of police opened fire on the crowd.

Others said the killer had opened fire on a crowd.

Then the sky opened on the announced crowd of 46,574.

During the match, police entered the Park and opened fire on the crowd.

According to some accounts, the police, covered by British troops, opened fire on the crowd.

At six minutes to sunset they opened fire on a crowd of about 20,000 people without giving any warning.

Troops and police officers let the protesters into the town, but later opened fire on the crowd, the source said.

In the ensuing panic, police opened fire on the crowd and each other.

The police opened fire on the crowd, and 69 people were killed and 186 wounded, many of them shot in the back.