The woman who allegedly shot and killed a retired Illinois state trooper at a Chicago area cigar lounge last week left a message to the trooper and another man scrawled on the wall of her condominium, police said:

“I hate you … hope you two die!”

Lisle police said they found the message written on the wall, along with the names of retired Trooper Gregory Rieves, who was killed in the Friday night shooting, and another man who wasn’t at the Humidor Cigar Lounge Friday night and wasn’t hurt.

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Rieves, 51, was pronounced dead at the hospital after Lisa McMullan reportedly shot him once in the back of the head. She also shot retired Trooper Lloyd Graham, 55, and off-duty Trooper Kaiton Bullock, 48, before turning the gun on herself, as CrimeOnline previously reported.

McMullan, 51, was pronounced dead at the scene. Graham and Bullock were admitted to the hospital with non-life threatening wounds.

On Saturday, police revealed that their investigation had determined McMullan, who had a concealed carry permit for her weapon, and Rieves attended the same suburban Chicago high school in the 1980s and that she and the three shooting victims were all acquaintances. The message on the wall, they said Monday, “may point toward a personal motivation.”

Investigators said Monday they were still interviewing witnesses and victims and that “a clear motive” had not yet surfaced.

Police said surveillance video inside the lounge showed the three troopers and McMullan sitting around a television just before the shooting started.

“Without apparent provocation, a female seated in a chair behind the victims stands up, draws a handgun and shoots the first male victim in the back of the head,” police said in a statement. “According to the video, she then fires several rounds at two additional male victims, before fatally shooting herself in the head.”

She fired seven rounds in total, police said.

The Lisle police also released a condensed version of radio traffic between dispatchers and responding officers during the first hour after the 911 call “to illustrate the tense, rapidly evolving moments during this incident.”

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[Featured image: Gregory Rieves/Illinois State Police]