As investigators probe the extent of alleged political assassin Vance Boelter's plot targeting Minnesota lawmakers, some questions remain unanswered.

Vance Boelter, 57, was arrested late Sunday night after what law enforcement officials said was the largest manhunt in Minnesota's history.

In a politically motivated attack, two Minnesota lawmakers were shot in their homes early Saturday. Former House Speaker Melissa Hortman was killed, while State Senator John Hoffman was wounded. Authorities are conducting a statewide manhunt for the suspect,

Accused Minnesota assassin Vance Boelter's alleged plan to kill more politicians on his target list was foiled by a police sergeant's proactive hunch.