The Columbine High School shooters were cis men.
The Virginia Tech shooter was a cis man.
The Sandy Hook Elementary School shooter was a cis man.
The Parkland High School shooter is a cis man.
The Uvalde school shooter was a cis man.
The Texas Tower sniper was a cis man.
The Isla Vista killer was a cis man.
The Las Vegas shooter was a cis man.
The Charleston church shooter is a cis man.
The Oslo bomber is a cis man.
The Pulse nightclub shooter was a cis man.
The Washington Navy Yard shooter was a cis man.
The Christchurch mosque shooter is a cis man.
The Buffalo shooter is a cis man.
The Apalachee High School shooter is a cis man.
The Antioch High School shooter was a cis man.
Need I go on?