'Bunny boiler' Sarah Williams handed 30-year minimum term for love rival murder

"Bunny boiler" Sarah Williams is beginning a minimum 30-year jail sentence after paralysing her love rival with a stun-gun before "slaughtering her like an animal".

Williams, 35, shot businesswoman Sadie Hartley, 60, with a 500,000-volt weapon as her unsuspecting victim answered the door on January 14.