Australia's most famous mobster killed in prison

MELBOURNE - Australia's most notorious mobster, jailed over a string of gangland killings which captivated the country and left 30 people dead, was himself killed in a prison assault on Monday, police said.

Carl Williams, a cherubic-faced, underworld killer widely known in Australia as "Fat Boy", died after he suffered head injuries and went into cardiac arrest at Barwon Prison, south of Melbourne.

Williams, 39, had been serving a 35-year minimum jail term after pleading guilty in 2007 to the murder of three gangland rivals.