Mick Jagger’s Granddaughter’s Longtime Partner Missing After Leaving Pub
Concern is mounting in Cornwall as the partner of the rocker's granddaughter — and father to their two young daughters — has gone missing after a quiet afternoon at a local pub.
Alexander Key, 37, the longtime partner of Assisi Jackson — daughter of Jade Jagger and granddaughter of Rolling Stones icon Mick Jagger — has been reported missing under mysterious and troubling circumstances.
A photo of Alexander Key, shared 25 January 2026. | Source: Facebook/Devon & Cornwall Police
Authorities initially reported he was last seen on Friday, 23 January, at around 2:20 p.m., leaving the Cobweb Inn, a local pub in Cornwall. By Sunday, 25 January, the family's fears had escalated — and police officially launched a missing persons investigation.
According to Devon & Cornwall Police, Alexander is described as having a medium build, peroxide blonde hair, and wearing colourful clothing at the time of his disappearance.
A photo of Alexander Key, shared 25 January 2026. | Source: Facebook/Devon & Cornwall Police
A surveillance photo from that day shows him sitting alone at the pub bar, dressed in a striking red jacket with bold geometric detailing, layered over a dark hoodie. He also wore loose navy trousers and white trainers.
"If you have seen Alexander, or know of his whereabouts please call police immediately on 999, quoting log number 847 24th Jan," police urged in a statement.
A photo of Alexander Key, shared 25 January 2026. | Source: Facebook/Cobweb Inn
Assisi's mother, Jade, posted a screenshot of the police alert to her Instagram, prompting an outpouring of concern.
"I really hope you find him, what a worry 😢❤️," one follower wrote. "Sending lots of love and prayers ❤️," added another. "Sending love to his family and hoping he is safe," echoed a third.
The Cobweb Inn also joined the search, sharing an urgent message to its official Facebook page alongside a still from the pub's CCTV footage.
"URGENT…MISSING PERSON," the post began. "PLEASE LET US KNOW IF THE WHEREABOUTS OR YOU MAY OF STOPPED TO TALK TO ALEX OR NOTICED HIM WALKING. [sic]"
"HIS FAMILY ARE SO WORRIED," it continued. "MISSING FROM FRIDAY 23RD JAN WHEN HE LEFT PUB AT 2.30PM. PLEASE SHARE AND IF YOU SAW HIM ON THE FRIDAY PLEASE LET US KNOW."
Alexander, resides in Cornwall with Assisi, 33, and their two daughters — Ezra, 11, and Romy, 6. He is the co-owner of The Rocket Store, a beloved harbourfront seafood restaurant in Boscastle known for its commitment to local suppliers.
Photos shared by the couple over the past decade show them enjoying everyday moments with their children — family outings, beach days, and quiet time at home. But now, the sense of calm is shattered.
On Tuesday, 27 January, Devon & Cornwall Police issued a critical update in the search for Alexander — releasing new CCTV images that place him alive and visible a full day after he was initially believed to have vanished.
While it was originally reported that Alexander was last seen Friday afternoon at the Cobweb Inn, fresh surveillance footage has now surfaced.
A CCTV still of Alexander Key, published 27 January 2026. | Source: Facebook/Devon & Cornwall Police
The new images show him at 3:25 p.m. on Saturday, 23 January, walking past the Wellington Pub on Old Road, heading in the direction of Boscastle Harbour and the River Valency — a location known for its rugged terrain and fast-moving waters.
In the latest sighting, Alexander is seen still wearing his distinctive red shirt, but now also donning a blue anorak-style waterproof jacket and black trainers — a detail that could prove vital to anyone who may have spotted him that afternoon.
A CCTV still of Alexander Key, published 27 January 2026. | Source: Facebook/Devon & Cornwall Police
He is described as being 5 feet 8 inches tall, in addition to his medium build and blonde hair. Known locally for his vivid sense of style, Alexander often wears brightly coloured clothing — a detail the police believe could help jog the memory of potential witnesses.
As the investigation shifts focus to a new timeline and location, the mystery surrounding his disappearance only deepens. Police are urging anyone in the Boscastle area who may have seen him on Saturday to come forward immediately.