(Video credit: Sussex Police via Storyful)

SUSSEX, England (WJW) -- A 67-year-old man who confessed to murdering a young couple has been found guilty.

After the murders, Derek Martin, 67, of Brighton, picked up the couple's four children from school and took them to a McDonald's, according to a news release from Sussex police.

Newly released police body-worn camera footage shows Martin later walked into the a police station and declared, "I've killed two people."

Jurors convicted him of two counts of murder on Friday, Oct. 4, after a three-week trial.

Surveillance footage played during his murder trial shows Martin "going about his normal routine" before the murders, getting a coffee from a cafe and going to breakfast with the children's mother, 30-year-old Chloe Bashford, reads the r

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