Greek police now fear Caroline Crouch's helicopter pilot husband may have been smuggling drugs for cartels and killed his British wife when she found out.
Theories of potential drug involvement were sparked after an investigation into Charalambos Anagnostopoulos's finances revealed he lived a lavish lifestyle, despite earning a pilot's salary.
Police officers found the couple had recently purchased a £47,000 plot of land, designed a £140,000 home, and enjoyed an expensive get away to Dubai.
The find, police said, suggests Anagnostopoulos, who is known as Babis, 33, may have had an alternative source of income and he killed Caroline, 20, when she found out where it came from.
She was suffocated to death with a pillow in front of her 11-month-old daughter in the early hours of May 11.
Greek police now fear Caroline Crouch's (pictured, with the couple's baby Lydia) helicopter pilot husband may have been smuggling drugs for cartels and killed his British wife when she found out
Theories of potential drug involvement were sparked after an investigation into Charalambos Anagnostopoulos's finances revealed he lived a lavish lifestyle, despite earning a pilot's salary
Father David Crouch has said he believes there was 'some foundation' to rumours Babis was involved in drug smuggling.
David said he and wife Susan learned of Caroline's death from neighbours on the Greek island Alonissos.
He said: 'I'll never forget how I felt. It was as if an icy hand had reached inside my chest and gripped my heart. It was the worst day of my life.'
Babis told investigators his wife had been killed during a violent home invasion where armed burglars had tied him up and suffocated Caroline.
He later confessed to killing his British wife, telling police he murdered her in a fit of rage after she had ordered him out of the house and demanded a divorce.
After suffocating her with a pillow, Babis said he 'panicked' when he saw she was dead and - once he realised hiding her body was not an option — he staged a fake robbery and killed the couple's dog because he 'wanted to raise' their daughter out of prison.
Anagnostopoulos, known as Babis, initially told investigators that his wife had been killed during a violent home invasion where armed burglars had tied him and Caroline up. Pictured: The couple with one-year-old daughter Lydia
Anagnostopoulos (pictured wearing a bulletproof vest while in custody) later confessed to killing his British wife, telling police he murdered her in a fit of rage after she had ordered him out of the house and demanded a divorce
The admittance came after data from Caroline's smartwatch showed she was in an 'extreme state of mental or physical stress for six minutes', and revealed that she did not die at the time Anagnostopoulos had originally claimed.
It also came after weeks of falsely playing a grieving husband, and surrounding himself with Ms Crouch's family and devastated parents.
Believing he had got away with the elaborate cover up, Babis even asked her parents to shell out £3,500 - about 4,000 Euros - for her coffin.
Thanassis Haramanis, the lawyer for Caroline's family, told The Sun: 'This man has no shame.
'First he killed Caroline, then he asked her parents for money to pay for her coffin and to fly her body from Athens for the funeral.
'They gave him 4,000 euros. He paid nothing.'
After suffocating Caroline as she slept, Anagnostopoulos then smothered puppy Roxy (pictured) and hanged the pup's lifeless body on the banister of their first floor flat in Athens
Believing he had got away with the elaborate cover up, Babis even asked her parents to shell out £3,500 - about 4,000 Euros - for her coffin (pictured)
Ms Crouch's parents have since won temporary custody of their granddaughter Lydia and intend to bring her up on Alonnisos.
Police are also investigating
