The case prosecutor used the fourth day of trial to emphasise the amount of effort that had gone into the preparation of the murder in 2016.
Ten investigators have worked the case since the death of both victims. Footage from nearby security cameras has been analysed to check the validity of the defendant's account of the events.
Background: More evidence comes to light in 2016 poisoning caseColleagues of the former policeman described him as "very determined", yet also acknowledged that he had been known around the office for his temper. It was also stated that the suspect had been focused on money and status. Moreover, he allegedly tried to sell his sister's apartment only days after her death to somebody from the workforce, which raised suspicions.
The emergency doctor at the scene reported that he had never experienced comparable circumstances to what he witnessed in Bereldange. The defendant allegedly showed little reaction to the confirmation of death, while being involved in a heavy discussion with one of his colleagues. However, when he saw that content from one of the victims' stomachs was removed, he became frantic.
The trial will continue on Wednesday.
