LOUISBURG, N.C. -- An 18-year-old man accused of decapitating his mother promised an emergency dispatcher that he wouldn’t kill two young siblings heard wailing in the background of his 911 call, according to a recording released Thursday.
The suspect, who called 911 not long after the killing Monday afternoon, calmly gave answers throughout the nearly 17-minute recording - with responses ranging from his location to the names of his 4-year-old sister and 2-year-old brother who were in the house. He said his father was away and recited the man’s name and cell phone number in an even tone. The dispatcher asked repeatedly about the children.
“I’m not going to kill them; don’t worry,” the suspect responded.
The siblings were found unharmed when deputies arrived Monday at the house in Zebulon, about 30 miles east of Raleigh. Court documents said the first deputy on the scene saw the suspect walk out of the house carrying a knife in one hand and his mother’s severed head in the other.
The emergency call began with the suspect saying he killed someone and the dispatcher asking him why.
“Why did you kill somebody?” the dispatcher says.
“Because I felt like it,” the suspect answers.
Later, the dispatcher asked if the mother had made him mad: “What was she doing? Did she make you mad, or what happened?”
The suspect responds: “Yes, she made me mad.”
The recording offered chilling details of the aftermath of the killing by the suspect described by his defense attorney as mentally disturbed. As they trade questions and answers, the dispatcher sounds unnerved at times. When the operator asks the caller what he did with the knife, he replies, “It’s in her mouth.”
When he says he stabbed his mother eight times, the dispatcher responds: “Oh, mercy.”
The exact spelling of the suspect’s name was unclear. Local court records listed him as Oliver Funes Machada; federal records as Oliver Funes Machado. He is charged with first-degree murder.
The mother’s name, according to local authorities who received the information from a 14-year-old son, is Yesenia Beatriz Funez Machado, 35.
The suspect was from Honduras and in the U.S. illegally, said U.S. Immigration and Customs Enforcement spokesman Bryan Cox.
The warrants say he was on four medications for a psychiatric condition, but don’t elaborate. According to CBS affiliate WNCN, the teen had recently been committed to a mental institution and had been released just a week before the killing.
His public defender, attorney C. Boyd Sturges III, has said he spoke to the teen and that he is profoundly mentally disturbed.
District Attorney Mike Waters said officials were seeking a mental evaluation of Funes Machada. Due to the suspect’s apparent mental state, Waters said, “this is something that’s going to take weeks and months for us to get some answers as to why this happened.”
The suspect’s next court appearance is scheduled for Tuesday.
© 2017 CBS Interactive Inc. All Rights Reserved.