A man accused in shooting and killing a young woman at San Francisco's Pier 14 last week pleaded not guilty during his first court appearance on Tuesday. ABC7 News has also learned that the suspect allegedly used a gun that belonged to a federal agent. Investigators are now working to determine how Sanchez got the gun. One source tells ABC7 News that the gun may have been stolen from the agent's car.

With a translator standing by, Francisco Lopez Sanchez pleaded not guilty in Spanish. He faces a charge of murder with a gun enhancement. Bail was set at $5 million.

Outside the courtroom, San Francisco Public Defender Jeff Adachi said the bail was set too high.

"Mr. Sanchez was only in San Francisco for a very short period of time," said Adachi. "He has no convictions in the state of California."

Assistant District Attorney Alex Bastian then spoke to reporters.

"Well, today is about Kate Steinle," he said. "It's about this incredible family that's shown such strength in this incredibly difficult time. It's about bringing justice to that family." http://abc30.com/news/sf-pier-14-suspect-allegedly-used-federal-agents-gun/834424/