Shandee’s attack ‘would have taken at least 11 seconds’
A TOYOTA expert, a former friend of the accused, a used car dealer, and a biomechanics expert have given evidence so far in day two of John Peros' committal hearing.
The 34-year-old is charged with the murder of 23-year-old Shandee Blackburn late on the night of February 8, 2013.
Biomechanics engineer Dr Zach Cooper was questioned in Mackay Magistrates Court today by telephone by defence barrister Craig Eberhardt in relation to the 22 stab wounds found on Ms Blackburn's body.
Mr Eberhardt asked whether the 40-second time gap, in which a running figure captured by CCTV footage was out of frame, would be sufficient time for a person to deliver 22 blows.
Dr Cooper responded that a single blow would take 150 milliseconds to deliver, but the overall cycle time was half a second.
Dr Cooper told the court he concluded the attack would have taken at least 11 seconds.
Mr Eberhardt asked whether a struggle could increase that time, and Dr Cooper answered yes.
Dr Cooper said Ms Blackburn received stabs to her head, neck, left arm, right breast, and the rear of her right armpit.
He told the court bruising on Ms Blackburn's right hand suggested she had been restrained by the attacker's left hand and stabbed by his right.
Dr Cooper confirmed it was impossible to tell whether Ms Black was standing, bent over or on the ground during the attack.
He confirmed the knife used in the attack was likely to be around 80mm long, which was the depth of a wound in Ms Blackburn's neck.
A former friend of Peros', Cameron Maltby, was also questioned by the defence.
Mr Maltby confirmed he met Peros through the Pioneer Valley Boxing Club sometime between 2009 and 2010.
He told the court Peros was not in a relationship with Ms Blackburn at that time, but later the two started dating and he said he saw them together.
Mr Maltby confirmed he was in England for three months and returned to Mackay in May 2012.
Mr Maltby told the court he then had conversations with Peros, who had recently returned to boxing after a break up with Ms Blackburn.
He told the court that Peros had "copped the raw end of the stick" and was "disgruntled" with Ms Blackburn.
Mackay Toyota sales manager Ricky Bird was called upon to examine 14 CCTV stills from footage taken on the night of Ms Blackburn's death, all of which showed a white dual-cab vehicle.
He said each photo showed a car that was consistent with the design of a white Toyota Hilux manufactured between 1992-1997.
He said he couldn't be "100% sure" that all the stills showed the same Hilux, but said they shared similar characteristics.
Used car dealer Troy Neale was also questioned about the identification of the vehicle in the footage, and said he believed the car in the CCTV footage was raised.
The hearing continues.