I don't know what to think about this case. More details
Kedzie claimed he was attacked by two men who screamed political invectives at him:
In an interview with Wisconsin Reporter a few days after the alleged incident, Kedzie said the men wrestled him to the ground, put him in a chokehold and screamed, “Mitt Romney and Paul Ryan suck!” and other politically charged invectives.
Witnesses in the neighborhood apparently confirmed that a fight happened but denied that the men said anything political:
Witnesses said they heard nothing political uttered at the scene of the attack, only the attackers saying Kedzie was a “stupid (expletive deleted),” and that he shouldn’t have “picked a fight with two guys.”
Kedzie claimed to have identified one of his attackers after-the-fact, by spotting his picture on Facebook:
[Kedzie] identified his alleged attacker as Max R. Hey, a member of the University of Wisconsin-Whitewater soccer team, according to the police report. Kedzie told police that one of his attackers referred to the other as “Max.” Kedzie, who said he had never met the suspects before the night in question, tracked down and identified Hey on Facebook.
But multiple lines of evidence suggest that the man Kedzie named had nothing to do with the case:
Subsequent interviews with Hey, including a layered voice truth analysis (lie-detector test), the suspect told investigators that he was at home at the time of the reported attack. A number of friends and associates corroborated his story, as did a police review of Hey’s phone records, according to the police report. And investigators said they found no evidence of the kind of marks on Hey’s hands that would indicate he was involved in such a physical confrontation. [...]
On Nov. 29, after verifying Hey’s phone records and corroborating his alibi, police told Hey they didn’t have a suspect.
Max Hey, the man who Kedzie appears to have falsely accused, is understandably not happy:
Hey, in a final interview with police, said he believed the whole matter had turned political, but not in the way Kedzie had presented the attack.
“Hey asked if Kedzie had been given a lie detector test,” the police report notes. “Hey stated that he believed that there was too much emphasis being put on Sean Kedzie’s word, and stated that he thought it was all because of politics and because Kedzie’s father was a state senator.”
So ... my opinion:
The guy certainly appears to have been in a fight (c.f. injuries and witness reports). The claim that his attackers were motivated by politics seems possible but doubtful (witnesses deny it, but maybe they weren't close enough to hear -- though they did report hearing non-political remarks from the combatants).
The idea of being attacked by a stranger and then happening to find his picture on Facebook seems ... unlikely. The man he identified appears to be innocent. This certainly raises questions in my mind about Kedzie's judgment and reliability. But people in general are not good at evaluating their own fallibility and it's easy to imagine someone thinking that they'd correctly identified their attacker and then gradually solidifying that impression and becoming (wrongly) more confident as their actual memories of the event fade.