Joanna Dennehy is now on trial and has pleaded guilty to murdering three men and dumping their bodies, as well as the attempted murder of two further men.
The 31-year-old stabbed Robin Bereza, 64, and John Rogers, 56, at random, however they survived her frenzied attacks.
The bodies of her three victims were found in a field near to Peterborough last year.
Alleged conspirators Gary 'Stretch' Richards, 47, and Leslie Layton, 37, who are now on trial at Cambridge Crown Court, deny helping to cover up the of the murders.
However pictures of the trio show Dennehy posing with a terrifying knife, handcuffs and showing the self harm scars on her stomach, whilst another picture shows Richards posing with associate Mark Lloyd moments before Dennehy attempted to stab another two men to death.
Richards of Orton Goldhay, Peterborough, denies three counts of preventing the lawful and decent burial of a body and two counts of attempted murder.
Leslie Layton denies two counts of preventing the lawful and decent burial of a body and one count of perverting the course of justice.
Giving evidence at the trial, Mr Lloyd, who met Dennehy at a friend’s flat shortly before the attempted murders, told the court she stank of blood.
He said she told him:
‘I’ve killed three people, Gary helped dispose of them and I want to do some more. I want some fun.’
Describing the two attacks on random dog-walkers as like a scene from the film Psycho:
‘It was frenzied. She just went absolutely mad.
'She takes a knife out of her left pocket with her right hand. She strikes him like in the film Psycho, just like that. Thrusting and putting her whole weight behind it.
'I just kept saying "what the f*ck is going on, I haven’t signed up for this.
'Gary is seeing exactly what I’m seeing and there’s just no emotion from him at all.'
Giving evidence at court, associate Georgina Page told the court how she and Dennehy became friends while serving jail sentences together, revealing that Dennehy compared herself and Stretch to 'Bonnie and Clyde'.
The trial continues.