Brainy, normal guy: the suspect in US insurance CEOs slaying [Video]

The suspect in the high-profile killing of a health insurance CEO that has gripped the United States graduated from an Ivy League university, reportedly hails from a wealthy family, and wrote social media posts brimming with cerebral musings.

Luigi Mangione, 26, was thrust into the spotlight Monday after police revealed he is their person of interest in the brutal murder of United Healthcare CEO Brian Thompson, a father of two, last week in broad daylight in Manhattan in a case that laid bare deep frustration and anger with America’s privatized medical system.

News of his capture in Pennsylvania — following a tip from a McDonald’s worker –triggered an explosion of online activity, with Mangione quickly amassing new followers on social media as citizen sleuths and US media tried to understand who he is.

While some lauded him as a hero and lamented his arrest, others analyzed his intellectual takes in …