Car drove past group of youngsters and adults and gunman opened fire.
The victim has been named as Swedish national Flamur Beqiri.
30 people are dead in Texas and Ohio after the massacres which happened within just 13 hours of each other.
It comes after at least 20 people were killed in El Paso, Texas.
There are also reports of a second mass shooting overnight in Ohio.
The president said it “looked like a hate crime”.
"I’m not sure how to deal with this. Forgiving is going to take time."
A gunman live-streamed the killings online.
Thirteen people have died, including a gunman and a sheriff’s sergeant, after a mass shooting at a California bar popular with college students.
Hundreds were at a southern California bar when a gunman opened fire. At least 12 people were killed, including a deputy sheriff. Police say shots were still being fired when they arrived at the scene. They confirmed that the suspect was shot dead at the scene.