It seems you didn't bother to read what was in your link. It would appear Balmer has a lot in common with Teflon Don, Lionfish and a lot of other Trump supporters here on JPP.
From your link -
Balmer shared Facebook posts critical of former President Joe Biden, but doesn’t appear to have mentioned Shapiro, also a Democrat. In an interview with police, Balmer admitted to “harboring hatred” toward Shapiro, and said he would have beaten the governor with a hammer if found during the attack, according to an arrest affidavit obtained by CNN.
Balmer is a registered voter in Pennsylvania but is not affiliated with a political party, according to state records. On his Facebook account, he has made multiple posts since 2021 that are critical of Biden.
A post from January 2021 says in part, “Biden supporters shouldn’t exist. Where were you his first run? Well aware of the trash he is.” Another post from the same month reads in part, “RIP Joe Biden….. Whoops that’s in May, #notmypresidenteither.”
In September 2021, Balmer posted a meme criticizing Biden’s handling of the US withdrawal from Afghanistan. The meme shows Biden in a car with text that reads, “Get in, loser. We’re leaving Afghanistan.” The next image shows the former president appearing to drive off with text that says “*Drives off without you*.”
In June 2022, Balmer shared on Facebook what appears to be a photo of a needlepoint illustration of a flaming Molotov cocktail – the same weapon authorities say he used to start the fires at Shapiro’s residence.
“Be the light you want to see in the world,” the original image declared.