Editor's note: This page is a summary of news on the arrest of Luigi Mangione in connection with the death of UnitedHealthcare CEO Brian Thompson for Monday, Dec. 9. For news updates on the investigation, visit USA TODAY's article on the arrest of Luigi ...

Luigi Mangione’s defense team is trying to have evidence collected by the Altoona police — including the alleged murder weapon — barred from his upcoming trial

Luigi Mangione's attorneys argue that key pieces of evidence, including a notebook and a firearm, were illegally obtained.

The suspect charged with shooting to death the UnitedHealthcare chief executive on a Manhattan street has waived his extradition to New York and has been transported back to New York City. Stream Connecticut News for free, 24/7, wherever you are.

Luigi Mangione, the man charged in the death of United Healthcare CEO Brian Thompson, will appear in court Monday, as his defense team works to exclude some evidence from his upcoming trial.

Mangione fights to suppress diary and gun evidence as judge weighs key dispute in CEO murder case. Follow live.

A judge will ultimately decide whether to allow some of the evidence in Mangione's state murder trial.