San Francisco police are asking the public for help in locating and identifying a man who attempted to rob a Chinatown jewelry store at gunpoint last month.

The suspect, a 20- to 25-year-old man, entered the store in the 800 block of Grant Street Avenue around 12:30pm on February 3rd, knocked one store employee to the ground and ordered others to the ground at gunpoint, police said Friday.

The suspect then used a hammer to smash glass display cases full of gold and diamond jewelry, but was unsuccessful in stealing anything from the store, police said.

The suspect, who was wearing a hooded sweatshirt and dark pants and was armed with a handgun, fled on foot.

Police have released video surveillance images of the suspect and are asking anyone who recognizes him or has any information on this case to call (415) 575-444 to make an anonymous tip or text to TIP411 and begin the text message with "SFPD." —Sara Gaiser

Update, 3/6, 3:17pm: The outreach effort was successful, as community tips led to the arrest of the suspect.

According to police, he is 21-year-old Matthew Ho of San Francisco. Ho was apprehended at his home on the 300 block of Fell Street (between Octavia and Gough), and booked into SF County Jail on charges of burglary, aggravated assault, and attempted robbery.