Last week saw Utah resident Tyler Robinson arrested for the brutal public assassination of longtime conservative activist Charlie Kirk.

While there has been widespread speculation about why Robinson allegedly killed Kirk, the suspect's mother has reportedly provided insight into his potential motives. 

Suspect's mother says her son had grown increasingly "pro-gay and trans rights"

According to Fox News, the mother has told investigators that her son and husband had engaged in heated arguments over their respective beliefs.

Specifically, the woman explained that her son had recently grown "more political" while espousing "pro-gay and trans rights" positions.

"His family has collectively told investigators that he subscribed to left-wing ideology."

"He claimed that he had an opportunity to take out Charlie Kirk and he was going to do it, because of his hatred for what Charlie stood for."

FBI Director Kash Patel reveals on… pic.twitter.com/nh3f1JiBJx

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She recounted how he had expressed anger regarding Kirk's planned appearance at Utah Valley University (UVU) event, calling the activist "stupid" and accusing Kirk of spreading "too much hate."

Meanwhile, Fox News pointed out how Robinson is said to have sent incriminating text messages to his transgender boyfriend, who has since begun cooperating with authorities.

Progressive historian spread misinformation concerning shooter's ideology

The revelations about Robinson clash sharply with claims put forward by leftist figures, such as historian Heather Cox Richardson.

In a Substack post put up on September 12, Richardson asserted without evidence that Kirk's alleged killer embraced antisemitic and white supremacist ideology.

"Robinson had recently had a conversation with a family member about why they didn’t like Kirk’s viewpoints," Richardson asserted.

"Robinson appears to have admired the 'Groypers,' led by Nick Fuentes, who complain that more mainstream organizations like Kirk’s Turning Point USA are not 'pro-white' enough and have publicly harassed Kirk in the past," she continued.

Shooter engraved multiple far-left slogans on rifle shell casings

"The claim that he had used 'transgender ideology' was apparently a misreading of the headstamp 'TRN' that marks ammunition as the product of Turkish manufacturer Turan," Richardson went on to maintain.

In fact, Utah Republican Gov. Spencer Cox revealed during a press conference on September 12 that law enforcement had found far-left messages engraved on the shooter's ammunition.

One shell casing read, "“Hey fascist! Catch!" while another bore the words, “O bella ciao, bella ciao, bella ciao, ciao, ciao."

The New York Post noted how "Bella Ciao" is the name of an anti-fascist song which was sung by left-wing Italian partisans during World War II.