Investigation Discovery's Who is Luigi Mangione? looks into the life of the alleged killer who has split public opinion ...

Some of the fawning for the accused killer is just online trolling, but polls show a lot of it is very serious.

"It's outrageous that they have time to go and prejudice Mr. Mangione's ability to receive a fair trial," attorney Karen ...

Mangione's hair appeared to be longer and he was more clean-shaven than his last court appearance. He wore a dark green knitted sweater and did not smile as he walked to the defense table.