When a beloved tree began withering away, locals suspected a killer in their midst

Read the original at BBC News ↗
BBC News · collected 2026-09-18 · by Yujin Choi, Koh Ewe

Quick Summary

In Seoul’s Buam-dong neighborhood, locals grew concerned when a cherished century-old ginkgo tree started withering in summer 2023. Residents formed a group of amateur detectives after noticing plastic funnels around the base of the tree, suspecting poisoning by a nearby museum dedicated to a Korean artist. The community sees the tree as a beloved symbol and “oldest friend,” leading them to rally together to save it from what they believe is an environmental threat.
Written locally by qwen2.5:14b on 2026-09-19, using this article's own text rather than the other coverage of the same event (that is the story summary below).

AI analysis runs on qwen2.5:14b, locally

Story summary

In Seoul, locals in Buam-dong noticed that one of their beloved ancient ginkgo trees was showing signs of severe distress this summer. Residents like Jung observed green leaves falling unusually early, forming a rotting carpet around the tree. Concerned, they formed an amateur detective team to uncover what was harming the hardy 100-year-old tree. The mystery gained national attention and sparked debates about environmental issues in urban areas. However, the heightened scrutiny also brought anxiety for Jung, who requested anonymity due to the pressure. She described the tree as a silent, ever-present grandfather figure that locals felt an emotional connection with.

Written for “Tree Killing Mystery” on 2026-10-04, grounded in this article and the 0 other(s) covering the same event.

Signals How these are calculated →

Claims extracted
78
claim-shaped sentences
Uncertain
4%
3 of 78 hedged
Leaning
not political
takes no side on a contested political question
Correction & hedging signals
78.1
corrections and hedging in what we collected; not a measure of accuracy
Outlets on this story
1
Environment
Narrative spread
1
articles carrying this framing
Analyzed 2026-09-19 · how these are computed

Story

📰 Tree Killing Mystery
Environment · 1 article(s) covering the same event.

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Compared with similar articles

Nothing to compare against. No article is close enough to this one for the pipeline to have linked or judged the pair.

Publisher

BBC News · 2490 article(s) · 2 correction(s) detected
Running correction rate · 2 correction(s)
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2026-09-21
Watch: BBC tracks down abusive teacher secretly released early

Who wrote this

Koh Ewe
12 article(s) here · 1 carrying a prediction
🔮 The United Nations Command, which conducted the on-site investigations into the blasts with the South Korean military, said it would handle the violation of the 1953 armistice "through established Armistice mechanisms".
🔮 - Published A Sri Lankan court is set to rule on Naufer Moulavi, who is accused of masterminding the Easter bomb attacks that killed 270 people and injured more than 500 in 2019.
🔮 So Jung couldn't ignore what she was seeing.
🔮 South Cotabato Governor Reynaldo Tamayo told reporters earlier that one person died and four people had been hospitalised.
🔮 Meanwhile, glaciers in the region had also been thinning by about half a metre (1.6ft) a year, which could weaken existing fractures and increase instability.
🔮 - Published China has imposed a range of sweeping new rules restricting travel in and out of the country in a move that observers say will give the government even more control over its citizens.
2026-09-15 · mixed framing · China tightens travel restrictions for citizens
🔮 Over the past week, industry insiders at the leading US AI labs have been warning in extremely stark terms about the potential threat AI poses, with some saying it could wipe out humanity.
🔮 Dr Balakrishnan added the stone would have been in the patient's bladder for about five to 10 years.
🔮 "The sky was blue, life moved slowly and people could say what they really thought."
🔮 Starbucks Korea had in May launched a coffee tumbler promotion called "Tank Day" on the anniversary of the 1980 Gwangju Uprising, where hundreds were believed to have been killed by military forces.
Also by Koh Ewe
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 12 articles by Koh Ewe →
Yujin Choi
1 article(s) here · 1 carrying a prediction
🔮 So Jung couldn't ignore what she was seeing.
The only article under this byline in the corpus.

Topics

Buam-dong Korean Seoul

Subjects

Jung PERSON · 9× Buam-dong GPE · 3× Seoul GPE · 3× The Whanki Museum ORG · 2× Kim PERSON · 1× Kim On PERSON · 1× Korean NORP · 1× Park Jeon-hee PERSON · 1×

Narrative

On the museum website, architect Woo Kyusung explains he wanted to create a space for Kim's works "that would complement the elements of the nature - the moon, mountains, clouds, rocks and trees - that were so important to his art". In fact, Kim wrote essays under the pen name Su-wha, which translates to "conversation with trees". The irony is not lost on Buam-dong's indignant residents.
framing: assertive · carried by 1 article(s) · first seen 2026-09-19
🔮 So Jung couldn't ignore what she was seeing.

Claims (78 extracted, 3 hedged)

When a beloved tree began withering away, locals suspected a killer in their midst - Published Every summer, Seoul turns a deep green, growing dense and lush under humid skies. asserted
Seoul → begin → skies
But this year, one tree was visibly suffering. asserted
tree → suffer → ?
"Green leaves were falling to the ground, which shouldn't happen at that time of year," recalls Jung, who lives near the streetside ginkgo in Buam-dong, a largely residential neighbourhood in the north of Seoul. asserted
who → fall → Seoul
The tree is beloved by locals, who believe it has occupied its spot for more than 100 years. asserted
it → believe → years
So Jung couldn't ignore what she was seeing. asserted
she → ignore → what
With each passing day, her curiosity turned to concern. asserted
curiosity → pass → concern
A rotting carpet of familiar fan-shaped leaves soon surrounded the tree, a sight so alarming Jung and her neighbours formed a crew of amateur detectives to solve the mystery: what was ailing their hardy ginkgo? asserted
what → rot → ginkgo
The whodunnit engrossed Buam-dong and piqued the country's interest, making national headlines. asserted
whodunnit → engross → headlines
But the attention unsettled Jung, who spearheaded the campaign but has since requested anonymity - we are using a pseudonym. asserted
we → unsettle → pseudonym
"Imagine a grandfather who silently embraces you every day, listens to you, and has always been strong and full of life," she says. asserted
she → imagine → life
"Suddenly, he begins to die. asserted
he → begin → ?
So began one community's fight to save a cherished symbol of their neighbourhood. asserted
fight → begin → neighbourhood
Their unlikely enemy, who they believe plotted a surreptitious attack, was a museum built to honour a pioneering, nature-loving Korean artist. asserted
they → believe → artist
Who is killing 'Grandpa Ginkgo'? asserted
Who → kill → Ginkgo
Tucked between two mountains, Buam-dong is recommended by travellers and locals for its picturesque views, art galleries and cosy cafes - an escape from Seoul's bustle. asserted
dong → tuck → bustle
Because of its proximity to the Blue House, the president's official residence, urban development has been restricted, allowing the neighbourhood to retain its quaint charm. asserted
neighbourhood → restrict → charm
In a place where you usually find ginkgo trees in private gardens or untamed forests, this one is special, Jung says, because it flourished on the side of the road. asserted
it → find → road
"I pass this tree whenever I come home. asserted
I → pass → tree
I would say, 'Grandpa, I'm home.' asserted
I → say → ?
Or 'Grandpa, I'm heading out now'." asserted
I → head → ?
Jung only moved here four years ago, but the grand old tree was the first thing she noticed, and she grew to love it. " asserted
she → move → it
It was the only tree in the neighbourhood that belongs to everyone." asserted
that → belong → everyone
To Park Jeon-hee, who has lived here for nearly all his 74 years, the ginkgo is his "oldest friend". asserted
ginkgo → live → years
It's the same for 10-year-old Kim On, who walks past it everyday on his way to school. asserted
who → walk → school
It has stood since before he was born, Kim says, and "thinking it might fall down makes me sad". uncertain
me → stand → ?
So it wasn't surprising that Jung found ready allies in the community who had also noticed the ginkgo's withering leaves. asserted
who → find → leaves
They soon became suspicious of 10 white plastic funnels peeping out from behind the trunk. asserted
They → become → trunk
Jung had initially assumed they were providing nutrients, but then began to wonder if something more sinister was at play. asserted
something → assume → play
She and her neighbours sieved through security camera footage from a nearby house, until they found something odd: one morning in late April, the camera had recorded two men wearing white gloves and crouching over the base of the tree with a drill. asserted
camera → sieve → drill
Were these men installing the funnels? asserted
men → instal → funnels
Jung and the others couldn't exactly tell from the footage. asserted
Jung → tell → footage
But then they remembered something the local council had told them: a museum had previously asked landowners in the area for permission to remove the tree. asserted
museum → remember → tree
The Whanki Museum had apparently claimed that its outer brick wall, which sits inches from the ginkgo, was under strain from the tree's roots. asserted
which → claim → roots
The residents soon suspected the funnels contained some kind of herbicide that was slowly killing the tree - a suspicion also shared by arborists who came to examine it. asserted
who → suspect → it
And they believed the Whanki Museum was behind it all. asserted
Museum → believe → it
On the very day they saw the footage, a group of Buam-dong residents stormed into the museum, accompanied by four police officers. asserted
group → see → officers
When confronted, an employee "basically admitted" the museum had done something to the tree, Jung and her neighbour alleged. asserted
Jung → confront → tree
"Once they had said it, there was really no taking it back," the neighbour told the BBC. asserted
neighbour → say → BBC
The museum has neither publicly confirmed nor denied injecting herbicide into the tree, and has not responded to the BBC's questions. But it did publish a statement in May, saying the wall of its compound was "collapsing because of the ginkgo's roots". uncertain
wall → confirm → roots
It said it had sent letters to more than 40 property owners "requesting a solution". asserted
it → say → solution
…and 38 more, not listed.
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