What are symptoms of "antisocial personality disorder" that are first noticed?

Antisocial PD: Begins as conduct disorder in childhood or adolescence. Trouble with authority, serious rule breaking, deceit, stealing and aggression toward animals or people are some of the early signs that may indicate a problem.

Antisocial: The hallmark of this disorder is the person seems to have no conscience, or sense of morality, or right or wrong. This person cannot empathize with others, is opportunistic, predatory, and often thrill seeking. An example of this would be Charles Manson.