Pennsylvania police officer Joseph Detwiler told a Manhattan court that he initially joked about the tip in a text message with his supervisor.

Mangione's defense team wants to exclude the 9 mm handgun and a notebook that prosecutors say contained deadly intentions.

For the first time, the 911 call that led to Luigi Mangione's arrest at a McDonald's in Altoona, Pennsylvania, was played in court.

Luigi Mangione, the alleged shooter of UnitedHealthcare CEO Brian Thompson was in court Tuesday for the second day of his evidentiary hearing.

Pennsylvania police officer Joseph Detwiler told a Manhattan court that he initially joked about the tip in a text message with his supervisor.

A police officer who questioned Luigi Mangione in an Altoona, Pa., McDonalds testified in court Thursday in a pre-trial evidentiary hearing.