woman shot and killed three people and herself at a Seattle home Thursday,

woman shot and killed three people and herself at a Seattle home Thursday, injuring another woman who fled into the front yard and told officers "my mom has gone crazy," police said.

Officers responded to a report of gunshots at about 1:30 p.m.

and could still hear shots being fired from the house when they arrived, police spokesman Sean Whitcomb said. As police approached the scene, a man in his 50s ran into the house. Two more shots were fired and he ran back out,