A disturbing Facebook post led authorities to a suspected murder-suicide on a quiet Oregon street on the Fourth of July, police said.

The bodies of Randall Engels, 37, his wife Amy Engels, 35, daughter Bailey and son Jackson were found in Dundee at about 4:45 p.m. by police checking the home following a post on Randall Engels' Facebook profile that read: “If she’s gone I can't go on.” 

Newberg-Dundee Police Capt. Jeff Kosmicki told all four were found dead from gunshot wounds. Detectives believe Engels shot his wife and children before turning the gun on himself.

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Amy Engels filed for divorce on May 29, according to court records. The couple married in 1998, The Oregonian reports.

One neighbor told the newspaper the killings were “devastating” to the quiet town about 30 miles southwest of Portland.

"Things like this don't happen here," Kelly Wood told the newspaper. "One of the repercussions of living on a quiet street is when something like this happens it's devastating for the entire community."

Neighbor Kevin Ullom described the killings as “nerve-wracking” to the close-knit community.

"It's nerve-wracking because you just don't get that around here,” he told KPTV. “People barbecue and get together, and everybody helps everybody out.”

Cassey James, a teenager who baby-sat for the Engels, said Bailey was entering eighth grade this fall and was a “really sweet” girl.

An autopsy is planned for Thursday.