Nim Sok said a lot of people liked her son, and she didn't know he was partying in Belltown early Sunday morning.
Steven Sok was fatally shot about 2:45 a.m. outside the V Club. A 44-year-old man was wounded in the shooting.
"I just saw him yesterday," said Sok's sister-in-law, Sokthea Khim. "Now (he's) passed away."
Sok was born and raised in Seattle and worked at the Target store near Southcenter Mall.
A neighbor said Sok was in a gang, but his mother denied the allegation.
On Sunday evening, friends left flowers at the scene where the young man was killed as investigators continued trying to track down the shooter.
Seattle police said they have interviewed "multiple people" who may have witnessed the killing, but so far no suspects have been identified and the motive for the shooting was not clear.
A video recorded on the cell phone of a man who lives nearby captures the sound of eight gunshots fired in rapid succession
Then someone - apparently a friend of the 21-year-old victim - can be heard screaming for help in the immediate aftermath of the shootings.
The resident who shot the video asked to be identified only by the pseudonym "Juan."
"Look out the window and see the last three or four bullets getting put into this person on the ground," he said. "It wasn't surprising to me at all. I was sitting there waiting for something like this to happen."
"Juan" says he had a feeling there was going to be another round of trouble outside the V Club. He had his iPhone camera up and running when the shots suddenly erupted.
"There's no fight, no yelling, there's no commotion of any sort," he said.
Juan says the shooting suspect actually ran back into the club seconds after pulling the trigger.
"You can see in this video where they run straight back into the bar," he said.
Meanwhile, someone tried to help the man who had been repeatedly shot at close range.
The 44-year old victim, who might have been just walking by, was shot in the stomach.
Juan says he and plenty of other Belltown residents are angry that the city has very few ways to shut down problem bars or nightclubs, and he says that must change. "There has to be a mechanism, which is lacking, to deal with places that are irresponsible or run by thugs or just amateurs," he said.