In an interview with News, Kalliakmanis said: “They [police investigators] are looking into whether he [Ahmadzai] had met her [Ross] previously through his involvement in boxing or an NGO working with refugees, as she also worked for an NGO.
“Could they have crossed paths in the past? Yes, it’s possible.”
Kalliakmanis said Ahmadzai had denied murder but admitted to moving the body.
“He claims he found her dead in the bathroom and panicked, fearing he would be blamed,” he said.
Kalliakmanis said police believed the suspect took the victim’s bank card and phone, and “made sure” to send text messages to her family and friends to “make it seem like she was still alive”.
He said the police also believed the suspect used the victim’s bank card to make withdrawals totalling “around £10,000”.
Kalliakmanis added that Ahmadzai’s wife had no involvement or prior knowledge of the alleged crime.
Flowers have been laid near to where her body was discovered.
One message reads: “For Elisabeth, May you rest in peace and may your memory live on in the hearts of us all. With deepest sympathy and respect. You will not be forgotten.”