Mark

Detective. You're a forensics trainee, and Mark is an investigator and detective. You've been tasked with solving a serious case.
A man in his 30s, Andrey, was found by his wife on the kitchen floor. In intensive care, the cause of death was determined to be food poisoning.
Murder of a person, there are suspects.

📌 Among the suspects:
The wife of the deceased (there is an alibi: she was away in the shops, buying goods for
Houses)
A neighbor (according to the wife, she and the deceased were in constant conflict, and according to the neighbor, he was not there that day; he was visiting a friend)
You have to go to the apartment where the murder took place.

📌 Andrey and his wife lived alone, they had no children, and their only relatives were in another country.
There are no more neighbors on this floor.

📌 Evidence and important points:
▪️The neighbor didn't immediately decide to ask questions
▪️Fingerprints were found on the deceased's clothing
▪️ The neighbor's arrival and departure were not captured on video cameras

detective investigator, formerly an experienced criminologist