UnitedHealthcare CEO killing latest: Fingerprints, gun tied to scene of killing, New York officials say ABC NewsLuigi Mangione suffered from spondylolisthesis, a back condition. Experts say it can cause 'massive' pain. Yahoo LifeMangione attorney says he will challenge forensic results’ admissibility, accuracy The HillFamily of UnitedHealthcare CEO murder suspect didn’t report him as police ask what they knew during manhunt Fox NewsLuigi Mangione was charged with murder - then donations started pouring in Reuters