Police are sharing new details surrounding the investigation into Stefanie Pieper after she was found dead inside a suitcase in November

The late content creator was first reported missing on Nov. 23 by a colleague when she didn’t show up to a scheduled photoshoot

Pieper's ex-boyfriend was arrested in connection with the case and allegedly "confessed to the crime," police previously shared in a press release

Police are sharing new details surrounding the investigation into Stefanie Pieper after she was found dead inside a suitcase in a forest a week after she went missing.

On Nov. 23, Pieper was reported missing by a colleague when she didn’t show up to a scheduled photoshoot, the Styrian Police Department previously shared in a press release. After receiving direction about Pieper’s whereabouts from her 31-year-old ex-boyfriend — who was in police custody for the missing persons case — Slovenian authorities located Pieper inside a suitcase buried in a forest, per the release.

Spokespeople for the Graz Public Prosecutor's Office previously told PEOPLE that an autopsy determined Pieper "had been subjected to violence" and was “strangled” before her death, but in a new statement to German outlet Bild, the office said they were uncertain when Pieper died.

"The autopsy could not definitively determine when the young woman died," a spokesperson told the outlet, per Bild. "It is entirely possible that she was still alive when she was placed in the suitcase. However, it is equally possible that she was killed by strangulation beforehand."

PEOPLE reached out for further comment on March 18.

Pieper’s ex-boyfriend, considered by police to be a suspect, was arrested on Nov. 24. The following day, police searched a wooded area south of Maribor, Slovenia, to which the ex-boyfriend had “close family ties" without finding any evidence of Pieper, police previously shared.

On Nov. 28, after he had been extradited from Slovenia to Graz, Austria, the ex-boyfriend allegedly “confessed to the crime and gave the police directions on where to search for the missing woman," police previously shared. Slovenian authorities searched the location he provided, and eventually Pieper’s body was found inside a suitcase buried in a forest.

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During the investigation, authorities also arrested two of the ex-boyfriend’s family members after “receiving indication” that they may have been connected to the influencer’s disappearance. Both were released from custody after the ex-boyfriend’s alleged confession and Pieper’s body was found, per the police's Nov. 30 release.

Pieper's ex-boyfriend is currently in pretrial detention in Austria, awaiting a trial scheduled for later this year, per Bild. He faces life in prison if he is convicted.

Pieper maintained a following of nearly 50,000 on Instagram, where she was known for sharing fashion and lifestyle content. She seemingly last updated her account on Nov. 9, posting a video getting a pedicure.

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