In the months leading up to the high-profile murder of UnitedHealthcare CEO Brian Thompson in New York, accused killer Luigi Mangione was living nearly half the world away — in a high-rise Honolulu, Hawaii apartment, The Post has learned.

Luigi Mangione, 26, was arrested in Altoona, Pennsylvania, in connection with the fatal shooting of UnitedHealthcare CEO Brian Thompson outside a Manhattan hotel. Police found a "ghost gun," fake identification documents,

Just two weeks before Thompson’s murder, Mangione’s mother, Kathleen Mangione, reported him missing to the San Francisco Police Department on November 18, a police source told the San Francisco Standard. He was born and raised in Maryland and has ties to San Francisco and a last known address in Honolulu, police said.