Triple killer Jordan Monaghan is facing life behind bars after being convicted of murdering his newborn baby girl and toddler son by smothering, and six years later killing his new partner with a drug overdose.
The 30-year-old, a manipulative and controlling gambling addict, obstructed the airways of his helpless children in separate murders in January and August, 2013.
After further information came to light, police reviewed the deaths of Ruby, aged 24 days, and Logan, aged 21 months, and in 2018, Monaghan was arrested.
He was on police bail for the child murders when he murdered his new girlfriend with a deadly cocktail of prescription drugs in October 2019.
Monaghan killed because he could not face rejection by his partners, Preston Crown Court heard during his 10-week trial.
The defendant, who has been suffering a minor illness, was not in court as the guilty verdicts were delivered by the foreman of the jury following 26 hours of deliberation across six days.
Laura Gray, the 28-year-old mother of the children, could be heard weeping in the public gallery as the verdicts were given.
Monaghan was convicted of the three murders and two counts of attempted murder to a third child who cannot be identified for legal reasons.
The trial judge, Mr Justice Goose, ordered the defendant to be brought from prison to the court for sentencing at 3pm.
A construction worker, Monaghan, of Belgrave Close, Blackburn, smothered Ruby on New Year’s Day, 2013, as she slept in her Moses basket. Monaghan was alone with the child as her mother slept upstairs at the family home.
Eight months later, after Miss Gray discovered that her boyfriend owed thousands of pounds in gambling debts, she told him the relationship was over.
The next day he took their son, Logan, aged 21 months, to a local swimming pool, Waves in Blackburn.
While alone in a cubicle in the changing rooms he smothered the child, the jury heard.
Ruby’s and Logan’s deaths were both investigated as sudden and unexplained events, but the girl’s death was attributed to bronchiolitis and Logan’s cause of death remained “unascertained”.
Both had been seen by medics in the days and months before their deaths, but other than usual childhood illnesses no serious medical condition was found.
But a review was carried out by Lancashire Police after further information came to light and Monaghan was arrested and bailed on suspicion of murder in January 2018.
As the highly complex police investigation continued, Monaghan began a “toxic” relationship with mother-of-one Evie Adams, 23, who had suffered “chronic abuse” before becoming a foster child aged 12.
Police warned her not to be with him and a court order was made banning contact.
But the relationship continued and, while on bail for the murder of his children, Monaghan killed Miss Adams after she threatened to dump him.
Monaghan told her: “I won’t keep putting up with you saying we are over.”
The defendant illegally bought strong prescription drugs on the black market via WhatsApp and other contacts.
Miss Adams was found to have tramadol, diazepam, amitriptyline, zopiclone and pregabalin medication in her body after her collapse and death on October 24, 2019.
She died from tramadol and diazepam toxicity.
He then faked a suicide note from Miss Adams, discovered apparently by chance falling out of a picture frame as he removed the couple’s favourite photo of themselves to place in her coffin.
Monaghan was re-arrested in January this year and charged with all three murders.
He claimed to have nothing to do with the death of his children, but a dozen experts told the court that while the exact cause of the deaths was difficult to pin down, imposed airway obstruction was either “likely” or could not be ruled out.
Monaghan also claimed the illegal prescription drugs were for himself and denied ever giving any to Miss Adams.