Surveillence video shows the shooter approached the men from behind. One victim was shot in the head and the other in the chest outside Al-furqan Jame Masjid Mosque in Ozone Park around 1:50 p.m., according to the Daily News.
It was not clear if the gunman said anything before he started shooting, according to the Daily News.
Dozens of angry Muslim men, who believe the shooting was a hate crime, were gathered near the scene, according to the Daily News.
"People being shot in the head in broad daylight is unheard of," Millat Uddin, a neighborhood resident, told the Daily News. "Killing people brutally, like they're an animal."
The shooter is described as tall, dark-skinned and wearing a dark blue shirt and shorts.