The assassination of a former House Speaker in Minnesota sent shock waves throughout the political world, but it remained uncertain Monday if the violence will lead to long-term security changes

Two Minnesota lawmakers were targeted in shootings last week that killed Rep. Melissa Hortman and her husband, and wounded Sen. John Hoffman and his wife. The attacks show an escalation of violence against elected officials in recent years.

Violence and fear swept through towns in an arc around Minneapolis for more than 40 hours over the weekend as a man seemingly intent on sowing political devastation killed one Minnesota state lawmaker and left another bleeding from nine bullet wounds.

Threats and violent acts have become part of the political landscape, still shocking but somehow not so surprising.

A manhunt is underway for the gunman who was impersonating a police officer and had a list of possible targets, officials said.

Both solemnity and concern were shared across the aisle in the Pennsylvania Capitol as lawmakers discussed the dangers of political violence.

The Utah Republican downplayed and joked about what authorities say were politically motivated shootings over the weekend of Minnesota Democratic lawmakers.

One of the debilitating aspects of any violence is how final and definitive it is and how anemic any response to it feels. Capturing and trying the alleged culprit are necessary next steps but nothing unwinds what was done.