A medical expert believed to be on the verge of helping workers get near the time to make a better and more accurate explanation of the HIV virus was killed 19 over a weekend in Pennsylvania, officials said. United States.

Bing Liu, a 37-year-old research fellow from the University of Pittsburgh, was found dead Saturday at his home in the Ross Township area. Head and leg, and an hour after the shooting, a second man, Hao Gu, 46, was found dead in his car less than a mile from his car. First off.

Ross Township investigators have confirmed that the deaths of the two men are likely to be related, but the cause of the underlying cause is unclear. Edit: Sun Lee