Human rights organizations say thousands of LGBTQ+ people have died since the 1979 Islamic revolution.
Police said the employee was rushed to a local hospital with potentially life-threatening injuries.
“He was so sensitive and such a good listener and such a fierce protector of anyone who he felt needed help. He was there to help them.”
Earlier in November, more than 100 people gathered at the same bar and chanted similar slurs.
Research into Oregon's LGB older adult population also found a majority of them have experienced discrimination in the last year.
She is at least the 45th trans, nonbinary, or gender-nonconforming person known to have died by violence in the U.S. this year, passing last year's number of 44.
The daughter's boyfriend has been charged with murdering the couple and another woman who came to help.