11.11.2026 17:02
Two separate expert reports were prepared examining the home security camera audio related to the death of singer Güllü. The recordings included the words "Let me go" attributed to Güllü and "Throw" attributed to Sultan Nur Ulu. Her son Tuğberk Yağız Gülter's lawyers, in line with the reports, filed a criminal complaint against Sultan Nur Ulu and Kervan Eminoğlu on allegations of complicity in murder.
The singer Gül Tut, known by the name Güllü, died on September 26, 2025, by falling from the window of her home on the terrace floor of a 6-story building in Harmanlar Neighborhood of Çınarcık district in Yalova. As part of the investigation launched by the Yalova Chief Public Prosecutor's Office after the incident, legal proceedings were initiated against the artist's daughter, Tuğyan Ülkem Gülter, and her friend Sultan Nur Ulu, who was with her at the time of the incident.
At the end of the investigation, aggravated life imprisonment was sought for Tuğyan Ülkem Gülter on the charge of “premeditated intentional killing of an ascendant.” In the case heard at the Yalova 1st High Criminal Court, detained Gülter was sentenced on October 9, 2026, to aggravated life imprisonment for the crime of “intentional killing of an ascendant.”
TWO SEPARATE EXPERT REPORTS WERE PREPARED
Regarding the incident in which Güllü lost her life, her son Tuğberk Yağız Gülter's lawyers Rahmi Çelik and Mert Erdoğan had two separate audio examination reports prepared concerning the home security camera footage.
The scientific opinion report dated October 28, 2026, was prepared at the lawyers' request by an expert in forensic audio and video examinations, forensic sciences, and criminalistics. The second expert opinion was issued on November 6 by Mustafa Arapoğlu, who works in sound engineering and music production.
Both reports included transcriptions of conversations stated to have been recorded before and during the incident, while different assessments were made as to which person certain statements belonged to and what was said.
“I TURNED OFF THE CAMERAS” WORDS IN THE TRANSCRIPT
In the report prepared by Mustafa Arapoğlu, the conversations were listed with timestamps in minutes and seconds. According to the transcript, after the phrase “How are you?” attributed to Tuğyan Ülkem Gülter at 1 minute 2 seconds, at 1 minute 4 seconds came the words “Brother, I turned off the cameras,” and at 1 minute 8 seconds, “I turned off the cameras.”
At 1 minute 51 seconds of the recording, after the words “She had asked for the malkata. I'll throw it like that” attributed to Tuğyan, Sultan was recorded as replying at 1 minute 53 seconds, “How do you mean?” It was stated that Tuğyan said at 1 minute 54 seconds, “I'm thinking about how I'll do it,” and Sultan Nur Ulu used the phrase “Go get it” at 1 minute 57 seconds.
In the transcript, at 2 minutes 32 seconds, the male voice was seen to say “Do you think she's trying to scare [someone],” and Sultan said at 2 minutes 33 seconds, “She's trying to scare [someone].”
At 3 minutes 5 seconds of the recording, the words “Honestly, she won't come down” attributed to Güllü appeared, and at 3 minutes 8 seconds, “Look at these maniacs.” At 3 minutes 18 seconds, Tuğyan said “Come, come,” at 3 minutes 21 seconds Güllü called out “Girl, come here,” and then singing along to the song was recorded.
CLAIM IN THE RECORDINGS THAT SULTAN SAID “THROW IT”
In the report, it was stated that after the words “Wasn't she holding your hand too?” attributed to Tuğyan at 3 minutes 40 seconds, at 3 minutes 41 seconds came the phrase “Let me go” attributed to Güllü. In the continuation of the same conversation, it was conveyed that the word “Let go” was recorded at 3 minutes 45 seconds.
In the transcript, it was stated that Tuğyan said “Shut up, girl” at 3 minutes 49 seconds. After the words “She's watching me, she's watching me” attributed to Sultan at 4 minutes 2 seconds, Tuğyan was recorded laughing at 4 minutes 5 seconds, and at 4 minutes 8 seconds Sultan said “Throw it.”
At 4 minutes 29 seconds of the recording, the words “Apologize” attributed to Tuğyan appeared, and at 4 minutes 31 seconds, “Answer the phone.” It was stated that at 4 minutes 56 seconds Tuğyan said “Jump out the window,” at 4 minutes 58 seconds “Open, dog,” and at 5 minutes “Mom, look,” and at 5 minutes 2 seconds the phrase “Open” was recorded.
In the final part of the audio transcript, it was conveyed that at 5 minutes 10 seconds there was an insult attributed to Güllü, and at 5 minutes 11 seconds the sound of Tuğyan laughing. After the sound “Ah” attributed to Güllü at 5 minutes 22 seconds, impact sounds were recorded at 5 minutes 24 and 26 seconds. The words “Run, my mother is gone, run” attributed to Tuğyan at 5 minutes 29 seconds were included in the report.
20 AUDIO RECORDINGS WERE EXAMINED IN THE SECOND REPORT
In the report dated October 28, 2026, prepared by the expert in forensic audio and video examinations, forensic sciences, and criminalistics, it was stated that 20 one-minute audio recordings contained in a portable memory within the scope of the file and the recordings containing Güllü's voice were examined.
It was recorded that no direct changes were made in order to preserve the integrity of the original recordings, and that the analyses were carried out on copies. It was stated that in the examination, auditory analysis, acoustic and spectrographic analysis, and noise reduction and filtering methods were used in line with international forensic audio examination standards.
In the transcription section of the second report, notable statements were also listed.
- At 2 minutes 52 seconds of the recording, the words “Is everyone okay?” attributed to Güllü, at 2 minutes 55 seconds the words “Everyone is okay” in a low voice attributed to Tuğyan, and at 2 minutes 57 seconds the words “What the hell is that?” attributed to Güllü appeared.
- In the report, which contained the phrases “Honestly, she won't come down” at 3 minutes 5 seconds and “Look at these maniacs” at 3 minutes 8 seconds, the words “Oh, donkey” at 3 minutes 14 seconds, “Come, come” at 3 minutes 18 seconds, and “Girl, come here” at 3 minutes 21 seconds were recorded.
- The phrases “Let me go” attributed to Güllü at 3 minutes 41 seconds and “Let go” at 3 minutes 45 seconds were also included in the transcript. The speech at 4 minutes 2 seconds, however, was written with two different possibilities: “What is she pushing / what is she watching—she is pushing me / she is watching me.” In the report, the speaker of these words was indicated as Tuğyan or Sultan.
- In the continuation of the transcript, the words “No” attributed to the male voice at 4 minutes 25 seconds, “I don't want to see” at 4 minutes 27 seconds, “Apologize” attributed to Tuğyan at 4 minutes 30 seconds, and “I want her to see” attributed to Sultan at 4 minutes 35 seconds appeared.
- At 4 minutes 57 seconds, “Jump out the window” attributed to the male voice, at 4 minutes 58 seconds “Open, dog, get lost” attributed to Tuğyan, at 5 minutes 1 second “Let my mother throw it,” and at 5 minutes 2 seconds the phrases “Mom, look, throw this” were recorded.
- In the final section of the second report, it was stated that at 5 minutes 24 seconds there was an impact and sliding sound, and at 5 minutes 26 seconds an impact and “ah” sound. At 5 minutes 29 seconds, after the words “Run” attributed to Tuğyan and at 5 minutes 31 seconds “My mother jumped,” it was recorded that at 5 minutes 47 seconds “Tuğyan,” attributed to Çiğdem, and at 5 minutes 54 seconds the phrase “Brother, you…” appeared.
- The report stated that the recording ended with Tuğyan shouting “Mom, mom” and screaming sounds.
WHO DOES THE MALE VOICE IN THE RECORDINGS BELONG TO?
The report also drew attention to conversations stated to belong to a male voice in the audio recording. In the first expert opinion, at 2 minutes 25 seconds of the recording, “Did she come back from the bathroom?”, 2 minutes 27.at the second, “Something depending on the situation”, and at 2 minutes 32 seconds, “Do you think he is trying to scare [someone]?” were stated to have been included.
At 4 minutes 20 seconds of the recording, “Close the door”, at 4 minutes 47 seconds, “There is no honor”, at 4 minutes 54 seconds, “Let him throw [it]”, and at 5 minutes 9 seconds, “I shut myself in” were recorded.
In the other expert report, at 4 minutes 25 seconds attributed to the male voice, “No”, at 4 minutes 27 seconds, “I don’t want to see”, and at 4 minutes 57 seconds, “Jump out the window” were included.
While the reports contain no definitive determination as to whom the male voices belong, lawyers for Tuğberk Yağız Gülter argued that this voice could belong to Tuğyan Ülkem Gülter’s ex-boyfriend, Kervan Eminoğlu.
PROPOSAL FOR DNA EXAMINATION OF THE CIGARETTE BUTT
In the conclusion section of the second expert opinion, it was emphasized that the technical examination of the audio recordings is important for clarifying the incident, but cannot by itself establish the exact manner in which the incident occurred.
The report stated that the wound behind Güllü’s ear, the cigarette butt reported to have been found at the scene, previous expert reports, and other material evidence in the file should be evaluated together.
In particular, taking into account the chain of custody, storage conditions, and possibility of contamination of the cigarette butt, it was recommended that it be examined for DNA analysis if deemed appropriate. It was stated that it is important for experts to also evaluate the mechanism by which the wound behind the ear was formed and its relationship to the process by which the incident took place.
The experts reported that the reports cover only the technical and acoustic examination of the audio recordings, and that the final discretion regarding the exact manner in which the incident occurred and the legal responsibilities of the individuals belongs to the court.
NEW CRIMINAL COMPLAINT CONCERNING TWO INDIVIDUALS
Following the two separate expert reports prepared, Tuğberk Yağız Gülter’s lawyers Rahmi Çelik and Mert Erdoğan filed a new criminal complaint with the Yalova Chief Public Prosecutor’s Office.
The lawyers requested that action be taken against Sultan Nur Ulu and Tuğyan Ülkem Gülter’s ex-fiancé, Kervan Eminoğlu, on allegations that they participated in the murder. In the criminal complaint, it was asserted that the male voice in the reports could belong to Kervan Eminoğlu.
While the claims regarding to whom the conversations in the audio recordings belong and their connection to the incident are expected to be evaluated by the judicial authorities, it was emphasized that the statements in the expert reports do not by themselves prove that the individuals committed a crime.
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