Garry Newlove's widow Helen and the couple's daughters Zoe, Danielle and Amy talk about the murder of the 47-year-old, who was beaten to death after confronting youths who were vandalising his wife's car outside the family home in Warrington, Cheshire, in August 2007. The case sparked a national debate about alcohol-related antisocial behaviour, and Helen now campaigns to bring an end to gangs such as the one that claimed her husband's life