Killer, 26, who practised murder on a CAT before beating a stranger on night out and leaving him to drown in a river was so confident she got away with 'perfect murder' that she boasted to her lover - but was dobbed in to police after it went sour
Sadistic killer Scarlet Blake was so confident she had got away with the 'perfect murder' that she couldn't help boasting about it - that led to her finally being caught and now facing a life sentence in prison.
Source: dailymail.co.uk