To stay up to date with all the latest news, make sure you sign up to one of our newsletters here.Ms Brown suffered from a personality disorder which caused "impulsive violence" and was described by senior police officers as a "ticking time bomb" before the attack. In a statement the force said: "He (Mr Carter) suffered a brutal death all because she lost her temper."According to court reports at the time, Ms Brown had a lengthy criminal record of 65 offences, many of which involved violence.