EXCLUSIVE: Grieving ex-wife of Houston 'shooter' blames her divorce for his murderous rampage, claims lawyer who helped her split from violent husband turned 'mass killer'

 The ex-wife of suspected killer Ron Lee Haskell - who fled her abusive and violent husband after 11 years of marriage - believes she has paid the 'ultimate price for freedom'. Melanie's sister Katie Stay, brother-in-law Stephen and four of their young children (inset) were gunned down at their Texas home on Wednesday. Her former divorce lawyer Al Barker, who spoke to Melanie's mother, said: 'But I feel terrible because it is not her fault'. Melanie is pictured left with Ron Haskell and their three children before the split.