Before returning to their apartment at 5am on December 6, Ivana's friends said the trio had been out drinking in Bangsar, a city 20 miles away from their apartment.
The two women were pictured together in a selfie Ivana sent to her boyfriend Lukas Kramer two-and-a-half hours before police say she died.
He fears foul play and does not believe that Ivana fell or committed suicide.'I saw bruises on her neck, like fingerprints — as if someone had grabbed her there,' her father Marcel Smit told Dutch newspaper Algemeen Dagblad. 'The Department of State takes its obligation to assist U. Ivana arrived back at the building with the couple at 5am after a night of partying in Bangsar. An autopsy revealed she had traces of ecstasy and alcohol in her system at the time.Dang Wangi police chief Assistant Commissioner Shaharuddin Abdullah said the case was 'sudden death' and appealed for more information from witnesses. In a statement, a spokesman for Everus said: 'Everus is aware of the ongoing investigations by the Malaysian authorities with regards to one of our employees.He said: 'Our investigations so far and the post-mortem report show no elements of foul play.'Nathalie Woodworth, one of her best friends who went with the family to view her body, said they want more information from police.'We all just want an explanation to how she fell down.'Not just saying "she fell" and no explanation or proof.'Even if she did fall we all will live with it, but we just need proof,' she told Daily 'The company will continue to monitor this matter carefully.He does not know why his granddaughter was at the apartment.Her family also say it was not likely that she was drowsy because of the ecstasy found in her system.'Those are not drugs that you're going to sleep on,' her uncle Fred Agenjo said.'There are so many questions.