Jimmie Johnson’s sister-in-law, Marianne Janway, was hoping it wasn’t real.

Johnson’s in-laws, Jack and Terry Janway, the parents of the NASCAR star’s wife, Chandra Janway, were found dead in a home in Oklahoma in what police suspect was a murder-suicide carried out by Terry.

Johnson and Janway’s 11-year-old nephew, Dalton Janway, was also found deceased.

In a post on Facebook Monday night, Chandra’s sister, Marianne Janway, appeared to be hoping she would wake up from a bad dream.

“Please tell me this isn’t really happening please god someone,” Marianne wrote.

It is unclear if she is Dalton’s mother.

She was met with dozens of empathetic responses.

“I am so sorry honey. I love you. If there is anything I can do I will!!! Praying,” one friend wrote.

Commented another, “Mj i am soooooo sorry! It’s just not fair! Praying for you and your family!”

A third friend of Marianne’s wrote, “Oh honey. My heart is breaking and I can’t imagine your agony. Praying with everything I have for you.”

TMZ and Fox 23 both reported that police consider Terry, 68, a suspect in the alleged murders, but have not yet released a motive.

Fox 23 reported that a woman — purportedly Terry — called 911 to report that there was someone with a gun at the home.

Police arrived to find a body in the hallway, and then heard a gunshot come from inside the home.

Two more dead bodies were found in a search of the home.

In an interview with Fox 23, Muskogee mayor Marlon Coleman said he was a patient of Jack Janway, who was a chiropractor in town.

“It was traumatizing to find out that a long-standing family who had made so many contributions to our community were involved in this type of incident. It was even more bone-chilling to find out there was a child involved,” Coleman told the outlet.

“I knew Dr. Janway. Dr. Janway has worked on me, we’ve been acquaintances for a very, very long time since I’ve been in Muskogee. Just knowing that it was him and his family took a different toll on me.”

Johnson, a seven-time NASCAR Cup champion, has withdrawn from this weekend’s race in Chicago.