Police arrested a "strong person of interest" Monday in the Manhattan killing of UnitedHealthcare's CEO. A McDonald's employee in Pennsylvania alerted authorities to a customer, identified as 26-year-old Luigi Mangione, who was found with a weapon and writings linking him to the ambush. Read more: https://www.kgw.com/article/news/nation-world/hunt-for-unitedhealthcare-ceo-killer-continues/507-97759326-3bb4-48e3-8c73-3759dfdc9930 Subscribe: https://www.youtube.com/c/KGWNews8 Watch the latest KGW newscast: https://www.kgw.com/watch Get the KGW app: https://kgw.com/appredirect