Emotional Impulsiveness: A Link to Violent Criminality in the Personality Disordered?

It is well-established and beyond dispute that some individuals diagnosed with personality disorders are predisposed to offend violently. But what is it about personality disorder (PD) that predisposes such individuals to violence? Personality disorders are not alone in predisposing to violence, which has been found to be linked to a range of other mental disorders, including schizophrenia