A 29-year-old woman and a two-year-old boy have been shot dead and their neighbor has been critically injured in a shooting at a mobile home park in Washington state , authorities have said . Heather Kelso and Kaden Lum , the young son of Kelso 's roommate , were gunned down by an unidentified suspect at their home in Bremerton , Kitsap County , in the early hours of Saturday . Kaden 's mother was desperately trying to shield her son from the gunman when he was shot , it is reported . She was not hurt in the gunfire and later told police that she did not know the attacker . Tragic : Heather Kelso , 29 , and two-year-old Kaden Lum ( pictured ) have been shot dead and their neighbor has been critically injured in a shooting at a mobile home park in Washington state , authorities have said . One of the family 's neighbors , a man whose age is unknown , was visiting the property at the time of the attack at Kariotis Mobile Home Park . He was shot in the lower abdomen as he fled the scene . When sheriff 's deputies arrived at the park , the man was airlifted to Harborview Medical Center in Seattle with life-threatening injuries . He remains in a critical condition and has undergone surgery . Within minutes of the shooting unfolding , emergency crews had rushed to the scene in McWilliams Road NE . There , they found Kelso , an employee of Puget Sound Naval Shipyard , unresponsive . She was declared dead at the site . Kaden , who was also found unconscious at the mobile home , was transported to Harrison Medical Center in Bremerton . But despite medics ' best efforts , he later died . Scene : Kelso and Kaden , the young son of Kelso 's roommate , were gunned down by an unnamed suspect in their home in Bremerton , Kitsap County , early Saturday . Above , sheriff 's deputies are pictured at the scene . On Saturday morning , investigators were seen scouring the mobile home park with a police dog in a bid to find the attacker . However , the canine did not pick up a scent , The Kitsap Sun reported . 'We feel confident the suspect is no longer in the mobile home park , ' Kitsap County Sheriff 's Lt. Detective Earl Smith told reporters shortly after the shooting , which occurred at around 2am . Kelso had lived in the mobile home park for three years when she was gunned down , the sheriff said . Kaden and his mother had lived with her for just three weeks , according to the newspaper . Fatal : 'We feel confident the suspect is no longer in the mobile home park , ' Kitsap County Sheriff 's Lt. Detective Earl Smith ( right ) told reporters shortly after Saturday 's shooting , which killed little Kaden ( left ) The sheriff 's office did not release the boy 's mother 's name . Kaden 's father lives outside Kitsap County , Smith said . Two other homes were hit with bullets , but no one was hurt , he added . Bremerton is on the west side of Puget Sound , across from Seattle . A GoFundMe page has now been set up to raise money to help cover Kaden 's funeral costs . To donate , click here . Police are investigating the shooting .
Heather Kelso and Kaden Lum , two , shot dead at Washington state home . Kaden 's mother , who was not hurt , 'tried to protect her son from suspect ' Neighbor who was visiting home was shot in lower abdomen as he fled . Man , whose age and name are unknown , fighting for his life in hospital . Police are yet to locate suspect in attack at Kariotis Mobile Home Park . Kaden and his mother had been living with Kelso for only three weeks .