Anagnostopoulos is accused of murdering his wife, Ms Crouch, last month (Image: Babis Anagnostopoulos/Instagram)

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The husband of a British woman killed in Athens had his alibi destroyed by a fitness tracker, it is reported.

Charalambos (Babis) Anagnostopoulos, 33, admitted to killing Caroline Crouch on Thursday night as he was quizzed by detectives for eight hours, according to a police statement.

Anagnostopoulos initially claimed to police that Ms Crouch was strangled when armed burglars broke into their home in Glyka Nera, near Athens, and demanded cash and jewellery.

But his story reportedly fell apart as a fitness tracker on Caroline's wrist showed her heart had stopped beating hours before the alleged robbery.

Tracking data from Anagnostopoulos' phone also reportedly showed him moving from the attic to the basement of the house and back again, even though he had claimed to have spent the night tied to the bed.

Charalambos (Babis) Anagnostopoulos, 33, allegedly admitted to killing Caroline Crouch
(Image: Babis Anagnostopoulos/Instagram)

He had claimed there had been a break in at the house
(Image: ᴄᴀʀᴏʟɪɴᴇ ᴄʀᴏᴜᴄʜ/Instagram)

Also, the home security camera's memory card had allegedly been removed at 1.20am – hours before Anagnostopoulos claimed the robbery happened, police say.

Police spokesman Apostolos Skrekas told the Daily Mail: "When faced with the evidence he confessed.

"The tracker contradicted his initial testimony that he had been roped up and gagged by three assailants.

Ms Crouch was found dead on the morning of May 11.
(Image: Caroline Crouch/Instagram)

"Instead, what we found was that he moved around the house, going from the attic to the basement."

Anagnostopoulos allegedly admitted killing Ms Crouch, 20, in front of their 11-month-old daughter, and drowning the family's pet dog last month.

Greek Police said: "Investigation of the homicide of a 20-year-old native that took place on May 11, 2021, in Glyka Nera. The perpetrator is her 33-year-old husband, who confessed to his act."

The helicopter pilot is now being prosecuted on charges of intentional homicide committed in a calm mental state, animal abuse and making false statements to police.
(Image: Babis Anagnostopoulos/Instagram)

Officers said Anagnostopoulos told detectives that he killed Ms Crouch after she threatened to move out along with their baby daughter.

He allegedly confessed to smothering her and then staging a robbery scene.

The helicopter pilot is now being prosecuted on charges of intentional homicide committed in a calm mental state, animal abuse and making false statements to police.

Ms Crouch was found dead on the morning of May 11.