SAN FRANCISCO (KTVU) - A family is begging for answers and San Francisco police are releasing new images; hoping someone out there has the clue they need to bring a killer to justice.
Police say the photos and video they released on Wednesday show the gunman who shot and killed a man on the streets of San Francisco in the early morning hours of September 30, 2016.
The victim was 24-year-old Mitchell Warren.
Now his sister, Ashley King is speaking out, hoping someone will come forward to identify the gunman who shot and killed her brother just eight days before her wedding.
"He was supposed to be there, not having him there and still knowing that the individual that did this to him has shaken my family to our core. Is he still out there walking free? This has to come to an end," said King.
Investigators said cameras in the area captured images of the gunman before the shooting and making his getaway on the handlebars of a bicycle.
The person who was pedaling the bike has been identified by police, but they still don't know who the shooter was investigators. The video and stills released show the distinctive black jacket and giants cap the gunman wore.
"He had a backward San Francisco Giants baseball cap and he had a jacket on that had the wording "Fringe" on the back of it," said San Francisco Police Commander Greg McEachern.
The victim's father, Larry Warren spoke out. He said no parent should have to go through what he's had to endure.
"If somebody comes up and says 'I know what you're going through,' they have no idea. Unless you've been there and experienced it as a parent," said Warren.
The family is making one final plea for others to look at the video, the suspect, and into your heart if you know something.
"On Saturday it'll be Mitch's 26th birthday, but instead of wishing him a happy birthday we're begging you to help us find who murdered him," said King.
At this time police aren't discussing a possible motive, other than to say there was some kind of altercation before the deadly shooting.