Abed A Ayoub, the legal director of the American-Arab Discrimination Centre, led calls for people to donate to the memory of 23-year-old Deah Barakat, killed in his family home alongside his wife Yusor Mohammad Abu-Salha, 21, and her sister Razan Mohammad Abu-Salha, 19.
Mr Barakat had set up a fundraising page before he died that was raising money to provide dental care to Syrian children made refugees by the country’s civil war.
The 23-year-old dental student had been due to travel to Turkey with a team of faculty members from the University of North Carolina this summer.
Donations have significantly increased since Mr Barakat and his relatives were murdered.
You can donate via the YouCaring page that he set up.