Ian Stewart: The serial liar who created a web of deceit to cover up his lover's murder
Video report by ITV News Anglia's Matthew Hudson
For three months following the disappearance of his fiancé Helen Bailey, Ian Stewart painted the picture of a man consumed by worry.
He had called the police in April to report that his partner was missing and watched on as they searched up and down the country in a bid to find her.
The truth was though that he knew exactly where she was all along because she never left home.
After drugging and suffocating her, he dumped her body in a cesspit underneath the garage of the couple’s Royston mansion.
Even when officers arrested him in July, he kept up the charade - reacting with genuine shock that he was about to be questioned.
To those that thought they knew him, news of his conviction must have come as quite a shock.
Stewart was a keen bowls player and was a treasurer at the Bassingbourn Bowls Club in Royston for a number of years.
His two sons Jamie and Oliver also enjoyed the sport, and the family were well respected by fellow members.
Despite his commitment to the club, Stewart was famously tight with his money and once refused to contribute just £10 to help buy a new water tank.
Those that played alongside him described him as a highly competitive but aloof man, although none would have believed that he was capable of such evil.
"The amount of people who've actually known a murderer as a close friend or acquaintance must be minimal," Club Secretary Bill Manley told ITV News Anglia.
"So you just can't believe it's happening. I mean it's just unbelievable. Absolutely unbelievable. He just deserves all he gets in my opinion.
However, those who looked into Helen Bailey's murder were far from shocked that he successfully kept part of his personality hidden from his bowls friends.
Detective Chief Inspector Jerome Kent led the investigation into her murder, and dealt with Stewart at close quarters.
During the three months that Helen was supposedly missing, police spoke to Stewart a number of times, getting him to recall what had happened.
The recordings of the interviews show him vague and muddled.
Those who prosecuted him say his public face masked a deceitful nature.
"This is a man who behind a cloak of normality harbours very sinister designs," prosecutor Charles White said.
"He was playing a long game here. He plotted this and got all the pieces in place before executing his deed.
"That tells you all you need to know - he is a very sinister individual."
Stewart's plot
It was on April 11 2016 that Ian Stewart carried out a long-planned murder, motivated by money.
He hid his partner's body in a cesspit beneath the garage along with the body of her beloved dog Boris. He'd killed the dog to make his lies more credible - the idea that the pair of them simply walked away.
In the weeks leading up to her murder, Stewart had been secretly drugging his partner with sedatives, so he could carry out his killing with minimal fuss.
Just hours after her death, Stewart logged onto Helen Bailey's bank account and increased a monthly payment into his own account from £600 to £4000.
Ms Bailey had assets worth nearly £4 million, money Stewart was desperate to get his hands on, and the couple also shared a £1.5 million mansion.
As his plan unravelled with his arrest, Stewart decided to tell one last lie in a bid to clear his name - blaming the murder on two fictional kidnappers called 'Nick and Joe'.
However, the jury saw through his deceit and he will now spend the next stage of his life behind bars - a place many will argue he belongs.