would have taken at least 11 seconds
16th February 2016 3:30 PM
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.* *
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
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.* *
http://m.dailymercury.com.au/news/shandees-attack-would-have-taken-least-11-seconds/2933373/
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