1) This pic published in the Daily Mail showing debris left after terrorist attack on US Capitol seems relatively unremarkable. But a man in Sweden noticed something: the red scarf at the top with the name of the northern Swedish city of Skellefteå. Then it got interesting.

2) The man contacted his local paper, pointing out the fact that there was a scarf from a northern Swedish city of just 70,000 in the debris of the attack. The paper published the story, with the headline: "What's a Skellefteå scarf doing inside of Congress?"

3) It turns out that, in 2017, the scarf had been offered as a Christmas gift from the city of Skellefteå to people who had moved away from the area. They were told go to a website and order one. A total of 934 people did so, and had received the scarf.

4) Now, natl Swedish media picked up story, wondering if a Swede had participated in the terrorist attack in Washington. Doing a search, the paper Dagens Nyheter found pictures of the man who was wearing the scarf. The first showed him trying to force his way into the Capitol.

5) After breaking through the barriers, the scarf man was later seen toward the front of the mob, waiving an American flag, and no longer wearing his baseball hat...but an official police helmet and visor. Skellefteå scarf still on.

6) After viewing film of the event, Sweden's Dagens Nyheter newspaper revealed that the man was seen among in the group that had pulled a police officer out of the building and brutally beaten him. Let's get back to the scarf.

7) As mentioned, in 2017 the scarf had been sent out by Skellefteå as a gift to 934 people. So, the paper requested those names from the city. Of the 934, one lived in the US. They called. It was a woman who says she got socks, not a scarf. And, she has no idea who the man is.

8) Scarf Man was later spotted in this video posted to Twitter, helping to coordinate the events inside of the Capitol building. https://twitter.com/cm_merlin/status/1349252219242237952?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1349252219242237952%7Ctwgr%5E%7Ctwcon%5Es1_&ref_url=https%3A%2F%2Fwww.dn.se%2Fsverige%2Fmannen-med-skelleftea-halsduk-efterlyst-av-polisen%2F

9) Scarf Man (picture on the right) is now identified as a "Person of Interest" by the Washington DC police. Media in Sweden have not been able to identify him.

10) The Skellefteå scarf affair is a pretty fascinating story containing a mix of violence, social media data, investigative journalism, information through freedom of information, policing and small-town identity. Hopefully the scarf will help get the guy arrested.

11) Apologies. Eagle-eyed person who identified the scarf in the Daily Mail pictures was not a man, but a local Skellefteå woman. She says when she first saw it, she thought she was just imagining things. She double-checked and put it on Facebook & Instagram to confirm.