It allegedly took months of planning, but the suspect in deadly attacks on Minnesota lawmakers unfolded over a roughly 90-minute time span.

A gunman posing as a police officer killed a senior Democratic state assemblywoman and her husband on Saturday in an apparent "politically motivated assassination," and wounded a second lawmaker and his spouse,

John Hoffman, 60, and wife Yvette were also shot Saturday but are expected to survive. Hoffman was elected to the Minnesota Senate ... be armed with a pistol. The FBI is offering a $50,000 reward ...