SAN JOSE (KGO) --In San Jose, police are asking for the community's help in solving a set of cold cases spanning a three-year period that could be connected.
There are striking similarities between all of these cases. They all involve Vietnamese-American men who were gunned down in similar fashion.
In East San Jose's, residents in the Berryessa District remain stunned after the death of one of their own. "It was pow, pow, pow, pow, pow, you know I knew it wasn't fireworks," San Jose resident Timothy Rogers said.
Last month, Justin Tran, 26, was shot and killed in his car just yards away from his family's home on Cape Aston Court.
The unidentified suspects were seen driving away in a black Lexus sedan.
Neighbor Timothy Rogers still can't get the sound of gunfire out of his head. "We don't' know what happened , I mean it could've been me who pulled down there and got blocked in," Rogers said.
This case could be connected to three others over the past three years.
New video from San Jose police shows a different deadly shooting that happened in March 2016 at the Bon Mua Cafe on Tully Road.
Brian Le, 43, was inside when he was shot. His killers also have not been found.
Thach Duong, 41, was gunned down in December of 2014 outside the Golden King Café on Alum Rock Avenue.
You can see this video in slow motion just moments before the suspects pulled the trigger.
And finally, a case dating back to April 2013 where Viet Tran, 37, was shot to death on Senter Road outside an audio business that doubled as a club at night.
Police say all four victims were known to frequent these Asian cafes, which over the years have been cited for violence, illegal gambling and/or prostitution.
The cafes have also been connected to Vietnamese street gangs. "Whether or not these particular cases were a gang activity that was planned, we don't know, but we are definitely looking at that as a possibility," San Jose Police Department Lt. Paul Spagnoli said.
If you have any information that could help investigators, you're urged to call San Jose police.