Luigi Mangione, accused of killing UnitedHealthcare CEO Brian Thompson, celebrated his 27th birthday in jail with a reflective letter.

UnitedHealth operates the largest health insurer in the United States, UnitedHealthcare. While the stock has shed over half its value since the tragic death of UnitedHealthcare's CEO, the parent ...

Luigi Mangione revealed he wanted to kill Thompson to “prove a political point about the health insurance industry.” ...