Charlie Kirk was one of the right’s most prominent and polarizing voices who built his following by amplifying the false claim that the 2020 election was stolen and by railing against what he called “woke” culture.

His comments on race, feminism, LGBTQ rights and immigration often drew sharp criticism, sparking campus protests when he visited and making him a lighting rod for mockery and inspiration.

Kirk was the 31-year-old co-founder of conservative youth organization Turning Point USA, a nonprofit that promotes conservative politics on high school and college campuses nationwide, and was fatally shot Wednesday during an event at Utah Valley University, with officials on Friday identifying 22-year-old Tyler Robinson, now in custody, as a suspect in his murder.

Since Kirk’s assassination Wednesday, terminations and disciplinary actions against employees have mounted across industries.

Transportation Secretary Sean Duffy called for the firing of American Airlines pilots accused of celebrating Kirk’s death, with the pilots being “immediately grounded and removed from service,” according to Duffy, who wrote on X, “We heal as a country when we send the message that glorifying political violence is COMPLETELY UNACCEPTABLE!”

American Airlines confirmed it had “initiated action to address this,” emphasizing that “hate-related or hostile behavior runs contrary to our purpose, which is to care for people on life’s journey.”

Delta Air Lines also announced it had suspended employees pending an investigation after they shared social media posts that “went well beyond healthy, respectful debate,” noting that violations of the company’s social media policy can lead to termination, though the airline did not disclose details about the posts.

Idaho’s West Ada School District said it fired an employee who allegedly posted a video online, stating it was “shocked and saddened” by it and adding in a statement that “West Ada remains committed to nurturing and supporting our students and families, and to addressing harmful actions thoughtfully, with care, and with a focus on doing what is right.”

In Oregon, a middle school science teacher was placed on administrative leave for posting on Facebook that Kirk’s death “brightened up” his day, NBC affiliate KGW reported, with the teacher ultimately resigning.

South Carolina’s Clemson University announced Saturday that an employee was suspended pending further investigation after they made social media posts about Kirk’s death, with the university also thoroughly reviewing posts made by other employees, an action that prompted Sen. Lindsey Graham, R-S.C., to post, “Free speech doesn’t prevent you from being fired if you’re stupid and have poor judgement.”

The University of Miami’s health system announced that it fired an employee after “unacceptable public commentary,” stating that “Freedom of speech is a fundamental right,” but adding that “expressions that condone or endorse violence or are incompatible with our policies or values are not acceptable.”

A Children’s Healthcare of Atlanta employee was fired after making “inappropriate comments” about Kirk’s killing Friday, with a spokesperson stating that “This type of rhetoric is not acceptable for Children’s employees and violates our social media policy.”

In Portage, Michigan, an Office Depot employee was fired after allegedly refusing to print flyers about Charlie Kirk at a customer’s request, with Office Depot calling the incident deeply concerning and stating that the employee’s behavior “is completely unacceptable and insensitive, violates our our company policies, and does not reflect the values” of the company, adding in a statement that “We are committed to reinforcing training with all team members to ensure our standards of respect, integrity, and customer service are upheld at every location.”

The investigation into Kirk’s death is ongoing.