A teenage boy allegedly killed his software engineer father, his mom and three of his four siblings in their $2million Washington home, DailyMail.com can reveal.
Mark Humiston, 42, his wife Sarah and three of their children were found shot dead on Monday inside their rustic mansion in Fall City by Lake Alice, about 30 miles east of Seattle, which has some of the most expensive homes in America.
A 15-year-old boy was taken into custody after allegedly murdering five of the family’s seven members.
Police have not revealed the names or ages of the victims — or their relationship to one another.
But neighbors said the teen killed his parents and siblings, except one sister who managed to escape the massacre.
Mark Humiston, 42, his wife Sarah and three of their children were found shot dead inside their home in Fall City by Lake Alice, about 30 miles east of Seattle. They are pictured in 2011
The family purchased the sprawling three-bedroom, four-bathroom mansion in 2019. They are pictured in 2011
The teen girl was reportedly shot twice and taken to the hospital after receiving medical help from a neighbor. She is in ‘satisfactory’ condition, per officials.
Humiston, originally from Texas, worked as an Associate Principal at Hargis Engineers in Seattle, where he had worked for nearly 20 years, according to his LinkedIn.
The family purchased the sprawling three-bedroom, four-bathroom mansion in 2019.
King County Sheriff’s Office spokesman Mile Mellis said the situation was ‘clearly a domestic violence incident’ involving a ‘young man and firearms’.
Mellis added that there was ‘no significant confrontation with the young man who was taken into custody.’
Humiston, originally from Texas, worked as an Associate Principal at Haris Engineers in Seattle, where he had worked for nearly 20 years, according to his LinkedIn
A teen boy has been arrested over the five murders. Humiston is pictured in 2011
‘What had happened had happened, it was done.’
Officials said the teen suspect will face first or second-degree murder charges.
He is expected to make his first court appearance at 1:30pm PT on Tuesday.
Neighbors told Fox13 the kids were homeschooled and well-known in the neighborhood, often seen playing and swimming by their lakeside home.
Detectives arrived at the ‘tragic scene’ at about 5am after receiving multiple 911 calls reporting a shooting in the Lake Alice neighborhood.
Two adults and three young teens were found shot dead on Monday morning inside their home in Fall City by Lake Alice, about 30 miles east of Seattle
Detectives arrived at the ‘tragic scene’ at about 5am after receiving multiple 911 calls
The initial call was about a suicide attempt and possible gunfire inside a home, according to KOMO News.
The young girl who survived the shooting reportedly called 911 from inside a bathroom.
‘It’s very early stages of this investigation, but it’s going to affect many people,’ Mellis added.
‘I can say that it’s going to be really a tragic event for the community, for anybody who has any connection out here.’
Fall City is ranked 29 out of 273 cities in the US for cost of living, which is 120 percent higher than the national average – with a median home price of $1.5 million.
The area 25 miles east of Seattle and is part of the breathtaking Snoqualmie Ridge mountain range.
Fall City is ranked 29 out of 273 cities in the US for cost of living, which is 120 percent the national average. Downtown Fall City is pictured
Fall City has a quaint riverside downtown area filled with stores and places to eat.
Mellis said Fall City, with a population of about 2,000, is a ‘pretty nice area, low crime rate in general.’
‘This is a place where people come to raise their families,’ he added.
The Snoqualmie Valley School District has sent an email to families warning there may be ‘multiple school-aged victims,’ according to King5 news reporter Jake Wittenberg
However the district said the family involved ‘did not attend our schools.’