A man representing himself in federal court after being charged with trying to assassinate President Donald Trump at his ...

Shell casings with messages inscribed on them have been recovered after three high-profile attacks within the past year.

Experts in political violence say that such engravings are a way for shooters to ensure the rationale for their attacks are ...

An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. A condition of publication in a Nature Portfolio journal is that authors ...