OOLOGAH, Oklahoma - Two people are in jail after the Rogers County Sheriff's Office says a man was stabbed to death Saturday morning.

Rogers County deputies said a neighbor called 911 after finding a man bleeding on the ground at the Lake Country Mobile Home Park just north of Oologah.

"I'm a nurse and it just pains me that they couldn't just say 'Hey, go check on him,' or something like that. Maybe we could have done something for him instead of him laying here on the ground," said the victim’s friend, Mary Cook.

Mary Cook lives nearby in the park and said, "We've all been crying over there today, it's pretty sad. He was pretty close to my family."

Robert Kraft and Elizabeth Rollings are in the Rogers County Jail in connection to the victim's death.

The sheriff's office said several people were arguing around midnight and say Kraft stabbed the man in the chest.

Investigators searched Elizabeth Rollings' trailer and also arrested her for obstruction of justice.

Deputies said Kraft does have a criminal history, including assault and battery with a deadly weapon.

They also say Rollings admitted to being in a relationship with both the victim and Kraft.

Sheriff Scott Walton said the victim did not live at the park.

"We're reasonably certain he's been here before. We're reasonably certain that everybody is acquainted with each other that's involved in this," Walton said.

"It's usually real peaceful, no problems. And so, this is a pretty big shock to everybody in the trailer park," Cook said.

Cook knew the victim and said he used to stay with her family from time to time.

"Happy go lucky. Nothing really got him down. Liked to fish, liked to hang out with his friends," Cook said.

Cook said she'll remember him as someone who always wanted to help others. She says he was 32-years-old.

His name has not been released, while investigators work to notify the family.

Deputies said this is the second homicide in Rogers County this year.