Last updated at 11:16 p.m. Eastern
Seven people were found slain and two critically injured Saturday at a mobile home park built on the grounds of a historic plantation in southeastern Georgia, police said.
Glynn County Police Chief Matt Doering called it the worst mass slaying in his 25 years of police work in this coastal Georgia county. He wouldn't say how the victims died.
"This is a record for us. We've never had such an incident with so many victims," Doering told reporters. "It's not a scene that I would want anybody to see."
A family member called 911 at about 8 a.m. Saturday after discovering the bodies inside a dingy mobile home shaded by large, moss-draped oaks with an old boat in the front yard.
At an afternoon news conference, Doering declined to say whether police believe the killer was among the dead or remained at large. No arrests had been made.
Investigators were talking to neighbors about whether they saw or heard anything unusual, but hadn't found any witnesses to the crime. Police hadn't interviewed the survivors, who remained in critical condition Saturday night.
"I assume they know something, but we have not been able to speak to them," the chief said.
All seven bodies were tentatively identified by Saturday evening. The Georgia Bureau of Investigation was scheduled to perform autopsies Sunday.
Doering said families of the victims had been notified, but he would not release any names or ages before receiving the autopsy results.
"I really don't know the ages," Doering said. "There were some older-aged victims and we believe there were some in their teens."
Located a few miles north of the port city of Brunswick, the mobile home park consists of about 100 spaces and is nestled among centuries-old live oak trees near the center of New Hope Plantation, according to the plantation's Web site.
The 1,100 acre tract is all that remains of a Crown grant made in 1763 to Henry Laurens, who later succeeded John Hancock as president of the Continental Congress in 1777.
Laurens obtained control of the South Altamaha river lands and named it New Hope Plantation, according to the plantation's Web site.
Lisa Vizcaino, who has lived at New Hope for three years, said the management works hard to keep troublemakers out of the mobile home park and that it tends to be quiet.
"New Hope isn't rundown or trashy at all," Vizcaino said. "It's the kind of place where you can actually leave your keys in the car and not worry about anything."
Vizcaino said she didn't know the victims and heard nothing unusual when she woke up at 7 a.m. Saturday morning. After word of the slayings spread, she said, the park was quieter than usual.
"Everybody had pretty much stayed in their houses," Vizcaino said. "Normally you would see kids outside, but everybody's been pretty much on lockdown."