Yes there is. From one of the links above:
" The tipster identified the man as a Hell's Angels member, and said he "wanted to sow discord and racial unrest by breaking out the windows and writing what he did on the double red doors," reported the Star Tribune.
According to Minnesota Public Radio, community members have long suspected that outside extremists were trying to inflame tensions at demonstrations against racism and police brutality in the wake of Floyd's death, with some Twin Cities residents reporting seeing "white supremacist and other far-right imagery on vehicles that came into their neighborhoods during the protests."
While the man's face was obscured by a gas mask in the video, Christensen reportedly wrote in the affidavit that his height lines up with the video, and noted a "striking resemblance in the eye, nose bridge and brow area."
Multiple news outlets report that police also linked the man to an incident that took place in Stillwater, Minn., in June, when a group of men wearing white supremacist garb allegedly harassed a Muslim woman who was at a malt shop with her 4-year-old daughter.
"The reports also say police link "Umbrella Man" and the Stillwater incident with the Aryan Cowboy Brotherhood, a small white supremacist prison and street gang primarily based in Minnesota and Kentucky. "
That's evidence. You wouldn't happen to be a member of that Brotherhood, would you?