( CNN ) -- Mount Rainier National Park reopened to the public Saturday for the first time since Ranger Margaret Anderson was shot to death on New Year 's Day . All services at the park were available expect for `` snowplay . '' Anderson was the direct supervisor of the rangers there , and many on that crew -- and elsewhere in the park -- needed more time before returning to work , said park spokesman Charles Beall . `` This tragedy has pretty much affected every employee at the park , '' he said . Authorities believe Anderson , 34 , was killed by Benjamin Colton Barnes , a former soldier whose body was found face down in a creek , not far from where he allegedly shot Anderson . Investigators say Barnes shot the ranger after he blew through a checkpoint set up to check vehicles to make sure they had the proper winter gear necessary to travel the park . Anderson and another ranger had set up a second roadblock to stop him when he jumped out of the car and opened fire . She was struck before she was able to get out of her vehicle , authorities said . Anderson was the first Rainier park employee to be a homicide victim . The last ranger fatalities reported at the park were in 1995 when two climbing rangers died during a rescue . Areas within the park have been set up to celebrate Anderson 's life and provide a space for staff and visitors to leave condolences and flowers . She was the mother of two young girls . `` It hurt to open the park up again , '' park spokesman Kevin Bacher told CNN affiliate KOMO in Seattle . `` It 's part of letting go of Margaret . It 's part of our grieving . '' A memorial service for Anderson is planned for Tuesday at Pacific Lutheran University in Tacoma , Washington .
NEW : `` It hurt to open the park up again , '' says park spokesman Margaret Anderson . Kevin Bacher , the mother of two young girls , was shot next week . Her suspected killer was found dead . A memorial service for KOMO will be held Sunday .