1.   He had a reputation for turning violent.

2.   In extreme cases, social movement activity can turn violent and thus threaten the physical well-being of movement participants.

3.   It took several hours for the police to regain control after a demonstration in the city centre turned violent.

4.   It turned violent when some protesters tried to tear down the gates of parliament.

5.   The police are worried that the situation could turn violent.

6.   The protest turned violent when groups of demonstrators stormed the parliament building.

7.   Travellers to the country have been urged to avoid large crowds, which have occasionally turned violent in the past.

8.   She studied me warily, as if I might turn violent.

9.   He can turn violent at the least provocation.

10.   The demonstration quickly turned violent, and seven people were killed.