Police in Bali have claimed that the two suspects had sex after the killing.
They claimed the couple had sex in the room of the posh St. Regis hotel, and again in the four-star hotel they checked into after the murder.
The body of Mrs Sheila von Wiese-Mack, 62, was found in a suitcase in the trunk of a taxi at the St. Regis on Tuesday. Mrs Mack's daughter, Heather Mack, 19, and her boyfriend Tommy Schaefer, 21, have been arrested in connection with the murder.
Police sources told News Corp Australia that Heather was taken to the police hospital yesterday for tests after telling police she is pregnant.
As she was being escorted into the hospital room surrounded by media, she was heard saying: "Oh my God" and "hold my hand". Bali Police spokesman Senior Commissioner Hery Wiyanto confirmed that the tests conducted on Heather included a pregnancy test after she had told police she had an ectopic pregnancy.
An ectopic pregnancy occurs when an embryo is implanted somewhere other than the uterus, such as in one of the Fallopian tubes. The police spokesman told News Corp that Heather told the police she has to "fly back to the US soon for treatment". But the spokesman did not say whether she was pregnant or not.
Schaefer was also taken to the police hospital ahead of an interrogation.
Meanwhile, the Mail Online quoted witnesses as saying that Mrs Mack, her daughter and the boyfriend had a blazing row at the hotel reception desk a day before she was found murdered.
ARGUED OVER BILL
Hotel staff told the police that they argued over who would pay the bill when they checked out. They were scheduled to check out on Thursday.
Mrs Mack was seen pointing at Schaefer and telling her daughter: "I've paid for his flight here, so the two of you should pay for the hotel."
Witnesses reported that the mother and daughter were seen arguing on a number of occasions at the hotel, causing staff to be concerned that the two might even come to blows.
"The mother appeared like one of our upmarket guests," a hotel staff member was quoted as saying. "But the behaviour she and her daughter showed did not belong in our hotel. Even so, it's such a tragic end for that poor woman."
An insight into the family's background and Heather's psychological problems came from an anonymous person who wrote to the Jakarta Post saying she was the same age as Heather, and had been friends with her for years.
The writer said: "Heather has always been a very disturbed girl. She was extremely spoiled and would often scream and throw things until she got her way. "In 2006, Sheila and her husband were vacationing on a cruise ship when something went wrong and her husband cut his foot due to negligence. Sheila sued the cruise ship and won a sizeable amount of money.
"Heather became even crazier with the newly-inherited millions."
The former friend added: "Tommy recently lost the love of his life. In April, Tommy's long-time girlfriend, Rachel Smylie, passed away in a car accident in South Africa.
"I guess Tommy and Heather started dating after Rachel's death and I'm saddened that he got caught up in Heather's insanity. "Sheila was an incredibly nice, educated woman."
Meanwhile, a lawyer for Heather told CBS Chicago that she had no involvement in her mother's death.
Mr Michael Elkin reportedly said he has been retained by the daughter to help secure legal counsel in Indonesia. He said it would be up to her lawyer in Indonesia to decide what role Mr Elkin would play in any legal proceedings.
This article was first published on August 16, 2014.
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