An illegal immigrant from Iran arrested for murdering this pretty student by sneaking into her dormitory disguised as a delivery man has committed suicide in a Turkish prison.

Shayan Kheyrian, 25, who had been living illegally in Turkey for two years had started dating Aleyna Yurtkolesi, 22, a history student at Pamukkale University in the south-western Turkish city of Denizli.

But when she dumped him, he refused to accept it, and continued to pressure her to restart the relationship. When he realised he was not getting anywhere, he turned up at her place wearing a face mask and then rang the doorbells until one of her fellow students opened the door, believing he was a courier.

He then went to her room, where he walked inside and strangled her to death in her bed at the dormitory on 6422 Street in the Yunusemre District in Denizli on 9 January.

Despite the fact his face was covered, police identified him from the Arabic tattoo on his neck which was recorded by CCTV cameras, and he was arrested.

Local media reported that he had also confessed to the crime, saying that he had gone to see her to see if they could make peace and when they ended up having a row, he had suffocated her.

A close friend of the victim, Berkan Acar, said: “She was such a sweet person. She really was an angel. She lived in her dormitory alone and was really quiet.

“I met her only recently and we chatted and joked, and it seemed like she had everything to live for. Yet tragically, she is murdered and we are all devastated.

“It’s so sad that we couldn’t do anything, I live opposite and I didn’t notice anything. I wish I could have heard something and gone to help.”

Police say that her alleged killer committed suicide in his cell by hanging from a rope on the evening of 13th January.

Prison officials said that it was a suicide and confirm that his body had been taken to the morgue of Pamukkale University Hospital Forensic Medicine Institute for an autopsy.