CLACKAMAS COUNTY, OR (CNN) -- Questions still beg for answers in the deadly shooting inside a mall near Portland, Oregon on Tuesday.

While the motive remains a mystery we now know a lot more about the victims. Hunter Yuille says, "Always gave me stuff and everybody else, put everybody before her"

Hunter is the stepson of 54-year-old Cindy Yuille. She was one of two people killed when shots rang out. A co-worker finds it difficult making sense of such a senseless tragedy. Kelly Nickerson says, "Cindy was an amazing hospice nurse. She spent her life helping other people transition to the end of life and Cindy Yuille's family never got to say goodbye."

A friend and colleague of the other person killed, 45-year-old Steve Forsyth describes him as a loving husband and father of two. Tim McNamara says, "Our family is hurting from losing a great person and our heart goes out to Carla and their two children."

We're also learning more about the man authorities say ambushed shoppers before taking his own life. Detectives say 22-year-old Jacob Roberts wore a hockey mask during the rampage.

The suspected shooter's family expressed shock and grief through a friend on Wednesday. Suzie Hayes says, "She's very sad and wants everybody to know that she's so sorry what Jake did and that it's so out of his character."

Deputies say the 22-year-old stole the semi-automatic rifle he used from someone he knew, a rifle they say jammed at one point adding the tragedy could have been much worse.

A third victim, a 15-year-old girl is listed in serious but stable condition after suffering a bullet wound to the chest.