"On April 23, 2020, Twitter netizen PR PRO issued a tweet in response to California's announcement of the earliest known death in the United States, saying that it believed that the earliest case of new crown infection was earlier than this, and said that the brother of a friend next to him was in January Passed away in the first week of the year. "I believe this is earlier than last November! My best friend's brother died of flu in the first week of January. He had a potential problem.
By checking PR PRO's tweet on January 8th, 3 people around his friend died in the first week of January.
https://twitter.com/prcomproca/status/1253005658217017344