Canadian DNA expert testifies in murder trial
A DNA expert has told a jury that bloodstained items found at the scene of the alleged murder of Nicholas Dill matched the victim, while others matched the accused man, Andre Hypolite.
The prosecution's case against Hypolite is that he took crack cocaine with Mr. Dill, 43, and his girlfriend Stacey Pike, now 37, at their home on Boxing Day 2004.
He is alleged to have stabbed Mr. Dill in the back after Mr. Dill changed his mind about participating in a sex act with him.
It is further alleged that Hypolite chopped Ms Pike in the head when she tried to intervene by grabbing a machete.
She said during her evidence last week that she subsequently hit him with the machete.
She described the weapon Hypolite allegedly used to attack her and her boyfriend as having a dark brown handle and a long blade.
The accused man is said to have escaped through a window after the Police were called.
Defence lawyer John Perry QC claims that a fight broke out between Nicholas Dill and Stacey Pike when he walked in on her about to have sex with Hypolite.
Mr. Perry alleges that Ms Pike – who has a manslaughter conviction for stabbing another man 17 years ago – accidentally stabbed her boyfriend during the fight.
She denied this.
In earlier evidence, Detective Sergeant Jewel Hayward listed a number of apparently bloodstained items that the Police found at the scene in the aftermath of the incident.
These included a machete from a room used as a kitchen/bathroom, and three knives and a hammer from the kitchen.
From the bedroom – where there were stains on the floor, bed and walls – he seized items including a flick knife and a pair of brown underwear. Hypolite denies murder and wounding Ms Pike with intent to cause her grievous bodily harm.
Yesterday, Thomas Suzanski, a forensic specialist from a Royal Canadian Mounted Police laboratory in Halifax, Nova Scotia, said DNA profiling was carried out on items received from the Bermuda Police Service in February 2005.
DNA, he explained, is genetic material found in almost every cell in the human body.
"It's what makes us, us," he told the jury.
He added that testing samples of DNA material provides "extremely strong evidence of association and it's a good way of tying an individual to a crime scene or any individual to a weapon."
He detailed how blood found on a large brown-handled knife found in the yard of a home near the crime scene matched a blood sample taken from Mr. Dill.
The probability of another randomly-selected individual having the same profile ranged from one in 60 billion to one in 130 billion based on different population databases, he said.
Bloodstains found on a pair of underpants in the bedroom matched Mr. Dill and Ms Pike.
He listed the statistics for another randomly-selected individual having the same profile as Ms Pike as being between one in 58 billion and one in 2.2 trillion.
"Biological material" found on a brown-handled flick knife reportedly found outside the residence matched Hypolite, he said.
Such material could be skin samples from someone handling the knife or blood in an insufficient amount to be confirmed as blood.
Blue jeans seized from the home of a woman named Lisa Caines – where Hypolite was arrested – had blood consistent with at least two individuals on them, with the "majority component" matching Mr. Dill.
Blood on a machete found on the kitchen floor matched Stacey Pike.
During evidence last week, Ms Pike said she and Mr. Dill took the drug ecstasy on the morning in question although she could not say whether the defendant did.
Yesterday, Crown counsel Maria Sofianos told the jury that some evidence relating to the testing of body fluids taken from Mr. Dill and Hypolite for alcohol and drugs had been agreed between the prosecution and defence.
The testing was carried out by Government analyst Christine Quigley.
In relation to Mr. Dill, evidence of cocaine, benzoylecgonine – a substance that occurs when the body breaks down cocaine – and ecstacy were found in blood and body tissue samples taken during an autopsy. Alcohol and benzoylecgonine were detected in blood samples from Hypolite.
The case continues.
