What are the details?
Court documents detailing what Cruz purportedly told police following the deadly Feb. 14 massacre reported that Cruz said that he felt "worthless" and expressed a desire to die, among other disturbing remarks.
Cruz, 19, purportedly confessed to the mass killing that took the lives of 17 students and teachers at Marjory Stoneman Douglas High School in Parkland, Florida.
A recording featured Cruz reportedly muttering "kill me" to himself following his arrest, despite being alone in a room.
The transcript also noted that Cruz also had talked to himself aloud about his own desire to die.
"I want to die," Cruz reportedly said to himself. "At the end you are nothing but worthless, dude. You deserve to die."
What about the 'demon'?
Cruz also allegedly indicated that there was a "demon" in his head that told him to "burn," "kill," and "destroy."
John Curcio, a Broward Sheriff’s Office detective who was interrogating Cruz, asked the mass murder suspect to describe the demon.
"I hear demons ... a voice, demon voice," Cruz reportedly said, purportedly telling Curcio that the voice commanded that Cruz hurt people on the night leading up to the mass killing.
"The voice is, is in me. ... To me, it's me and then my bad side. ... It's a voice," Cruz reportedly explained. "The voice is in here and then it's me, it's just regular me, just trying to be a good person."
According to the transcript, Curcio told Cruz that he didn't believe Cruz had any interest in stopping the demon.
"You could have stopped the demon by getting a prescription for marijuana. You could have stopped the demon by getting a prescription for Xanax. You could have stopped the demon anytime you want," Curcio reportedly said. "You didn't want to stop the demon."
Cruz reportedly responded, "I don't like the demon," and purportedly ended the interrogation by requesting an attorney.
The news outlet reported that the partial transcript is 217 pages long and that video of Cruz's confession will be released on Tuesday.
Cruz has been charged with 17 counts of murder in connection with the Marjory Stoneman Douglas High School shooting, as well as 17 counts of attempted murder.
Cruz will face the death penalty if convicted on the murder charges.
According to Florida state law, if Cruz is convicted and a jury unanimously recommends the death penalty, a judge could order his execution.
Florida state law specifies that a person sentenced to death could elect death by electrocution or lethal injection.
A judge entered a not guilty plea on Cruz's behalf during the accused mass murderer's arraignment in March.