The Immigration and Customs Enforcement officer who shot and killed a Colombian man in Maine this week is an Army veteran who has struggled with serious mental health issues since early childhood, relatives say.

Protesters in Maine gathered outside Senator Susan Collins’ office to demand justice for the 26-year-old Colombian man who was fatally shot by federal agents

Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.AllNewsSportCultureLifestyleJoan Sebastian Guerrero, a 26-year-old…