Moment killer laughs when asked about stamping victim to death

A killer laughed to police after he stamped a mother who was trying to help him to death in a horrific random attack.Chukwuemeka Ahanonu, 24, was found guilty of murder after he launched a vicious assault on 56-year-old mother Nila Patel, moments after flipping his BMW on its roof in broad daylight in a city centre.He had only been released from prison on licence a year before the attack on stranger Mrs Patel, his trial heard.Chilling footage shows Ahanonu laughing and grinning in custody when shown a video by police of himself attacking Mrs Patel.Ahanonu claimed he could not remember the killing, but insisted to police he needed to see the footage, saying: 'I don't remember killing her, but I need to see it, bro.'