Luigi Mangione, accused of fatally shooting UnitedHealthcare CEO Brian Thompson, visited a gun range during a trip to Thailand three months before he arrived in New York, according to travel companions featured in TMZ’s new “Luigi Mangione: The Mind of a Killer” documentary. TMZ CEO @HarveyLevinTMZ joined #Banfield to discuss. MORE: https://t.co/JeqC3pZvlA