51.   Prosecutors argued during his sentencing hearing this week in Riverside that Powell exhibited violent behavior before he was ever sent to prison.

52.   Prosecutor Kate Mahoney argued that Frost should receive a long sentence because her criminal record showed a pattern of increasingly violent behavior.

53.   Rated R for pervasive language, drug use, violent anti-social behavior and some sexuality.

54.   Research suggesting a relationship between certain Rorschach indicators and psychopathic tendencies and violent behavior has been contradicted by later studies, the authors say.

55.   Rated R for disturbing and graphic depiction of violent antisocial behavior, sexuality and profanity.

56.   Researchers are still studying the mysterious West Nile virus and wondering about the violent behavior of sharks off U.S. coasts this summer.

57.   Several trends in contemporary society, he believes, are exacerbating violent behaviors, especially among the young.

58.   She knows that a relationship between violent films and violent behavior is hard to prove, she said, and she knows that youngsters are savvy about film technology.

59.   Since then the idea of teaching classic books to individuals who exhibit violent behavior has made its way to universities and prisons alike.

60.   Some sociologists who study the NFL say violent behavior off the field is to be expected because the players are coached to play violently.