Not only the examination of computers and telephones, but also investigations carried out directly on the web to ascertain the searches carried out by 44-year-old Claudio Gulisano on search engines, on websites and the examination of his email. All of this also going back in time, up to two or perhaps even three years ago. In addition, the examination of some medicines that his parents, the spouses Luigi Gulisano and Marisa Dessì, 79 and 82 years old, found lifeless last December 5 in the study of their home in via Ghibli, would have taken daily.
This is what the RIS investigators have been looking for for days now, busy with the unrepeatable technical tests on 68 items seized during five inspections in the house in Quartiere del Sole and in the home of the couple's youngest son, who ended up in prison at the end of December on suspicion of having poisoned his parents.
The last hypothesis? The poison administered before lunch, perhaps in some medicines that the elderly took daily .
Further details in the article by Francesco Pinna in L'Unione Sarda on newsstands and on the app .