It is currently presumed to be asphyxiation due to cervical compression, but it must be confirmed whether the North Korean defector’s DNA was detected on the string or murder weapon.
5. Expected Scenario
1) It is very likely that the mother-in-law gave her husband and younger brother sleeping pills in their coffee or alcohol at lunch or after lunch.
2) After 1~2 hours, my husband and younger brother fell asleep and I made a phone call to create an alibi with the insurance agent.
3) After confirming that her husband and younger brother were asleep, she murdered her younger brother using a tool around 5:00 to 5:30.
4) Going out for a meeting with an insurance agent at 5:47
5) After returning home at 8:05 p.m., I found that my younger brother was dead and stayed for about 40 minutes to wake up my husband, who was still asleep.
I thought the report was delayed.
Considering that there was a delay of about 40 minutes in reporting the murder, it is possible that she came home, murdered her younger brother, and woke up her husband before reporting it.