A GYM boss accused of killing a 28-year-old man with a deadly weight loss drug will face a retrial.
Sean Cleathero drank a yellow cocktail containing a massive dose of fat-burning drug DNP, which is normally used as an industrial pesticide.
He died eight hours later in October 2012 after suffering a heart attack and kidney failure.
Jamie Chivers, 44, who ran Apollo Gym in High Wycombe, where Mr Cleathero was a member, denies manslaughter.
Following a trial at the Old Bailey he today heard he will face a retrial on November 24.
Fellow owner Peter Purkins, 47, and bodybuilder Jason King, 41, were cleared of manslaughter but face a retrial on drugs charges in February 2015.
Purkins, of Heather Walk, Hazlemere and King, of Hazell Road, Prestwood, deny one count of conspiracy to supply class C drugs and one of production of class C drugs. King also denies perverting the course of justice.
However, Laura Hague, 23, of Orchard Grove, Chalfont St Peter was found guilty by the jury of perverting the course of justice and conspiracy to supply class C drugs.
The court heard the champion powerlifter, who holds the British record in two weight classes, helped clear out the Apollo Gym following the death of Mr Cleathero.
She was on bail during the trial but was remanded in custody by judge Nicholas Cooke QC following the verdicts. The sentence is expected to take place later this year.
The court heard she won her weight class in powerlifting at the European Championships and hoped to attend the next World Championships in Las Vegas.
She lived with her mother and taught gymnastics as well as working at the gym.
DNP is legal to possess and supply, but the effects on humans have been known for more than a decade.
Mr Cleathero, a father-of-one, was caught on CCTV taking the drugs at the gym on October 16, 2012. His grandmother Janice found him collapsed in the lounge at home just hours later, struggling to breath due to the effects of the drug.
The court heard Chivers and Hague cleared out the Precision Labs premises at the gym so it was empty when police came to search it.
Chivers also wiped the CCTV footage of him delivering the drugs to the gym, but was caught on camera tampering with the camera system.
Chivers, of Spring Gardens Road, High Wycombe pleaded guilty to two counts of conspiracy to supply class C drugs and two counts of perverting the course of justice before the trial began.