Luigi Mangione defense questions as new evidence is pinned in UnitedHealthcare CEO shooting

There are new details about pieces of evidence that New York officials are testing in the case of UnitedHealthcare CEO Brian Thompson's murder. CBS News legal contributor Jessica Levinson has more on what could be Luigi Mangione's defense.

Luigi Mangione defense questions as new evidence is pinned in UnitedHealthcare CEO shooting
There are new details about pieces of evidence that New York officials are testing in the case of UnitedHealthcare CEO Brian Thompson's murder. CBS News legal contributor Jessica Levinson has more on what could be Luigi Mangione's defense.