. >> to her close friend kimberly hurst, she was margaret lacey. >> to her colleagues as a professor of nursing at regis >> i had her as a student and she had a lovely and easy laugh. >> reporter: monday evening, she was walking her dog at wa road and 52nd avenue in arvada and an suv making a left turn struck her and killed her. >> you can't believe that someone that vibrant would be gone from your life so suddenly. >> she always had a smile. >> she'll forever. >> thoughts turned to her dog jesse. >> our fear is that the dog is hiding out of fear. he's probably hungry and cold. >> they searched for four days, looking at every vet and animal shelter. >> we all rallied around the idea that this would be something that we could have a bright light if we could find her and bring her home. >> i know that would mean so much to margaret if her puppy with was with friends and family. that would put her soul at rest in a way. >> i'm nelson garcia. >> friends say jessie was hit by a car as well. she's in surgery right now at a nearby animal hospital. they all hope she can surviv and we're pull

. >> to her close friend kimberly hurst, she was margaret lacey. >> to her colleagues as a professor of nursing at regis