The culprits were never positively identified, though suspect sketches have been released.
The first suspect was described at the time as a Hispanic male, late teens to early 20s, standing 5-foot-5 and weighing 120 pounds, wearing a dark ball cap. The second suspect, also a Hispanic male in his late teens to early 20s at the time, was 5-foot-5 and about 120 pounds with dark hair.
Sheriff's Det. Nick Paxton said last week there haven't been any new developments in the case in recent years. In highlighting the Tse cold case on social media Sept. 20, detectives said they were looking for any details to help breathe new life into the investigation.
Anyone with information related to the case can contact the Cold Case Homicide Unit at 510-667-3661. To remain anonymous, witnesses can also call the anonymous tip line at 510-667-3622.
In other news
* The Alameda County Coroner's Bureau has identified the motorcyclist who died in a solo crash on Interstate 680 in Sunol last week as Michael Jankowsky, 59, of San Jose.
Jankowsky was riding northbound on I-680 near the truck scales just before Andrade Road when the motorcycle went down for unknown reasons just before 10 a.m. Sept. 26, according to Officer Tyler Hahn of the California Highway Patrol. No other vehicles were involved in the crash.
The San Jose man was transported to Eden Medical Center in Castro Valley, where he was pronounced dead later that morning.
Officers are unsure what caused the motorcycle to go down. They are investigating the possibility that Jankowsky suffered a medical emergency right before the crash, but they are awaiting final autopsy results from the coroner's bureau, Hahn said.
* The federal gun possession trial of the undocumented immigrant who possessed the gun that killed Pleasanton native Kate Steinle in San Francisco in 2015 has been postponed for at least several months while a U.S. Supreme Court ruling in a different case is awaited.
Jose Ines Garcia Zarate was originally scheduled to go on trial last Monday in the court of U.S. District Judge Vince Chhabria in San Francisco on two federal charges of being an ex-felon and an undocumented person in possession of a gun.
But on Aug. 24, Chhabria postponed the trial until the Supreme Court issues a ruling in an Alabama case known as Gamble v. United States, saying "There is a serious possibility that the Supreme Court's ruling in that case will require dismissal of the charges against Garcia Zarate."
The issue in both cases is whether prosecution on similar state and federal charges violates the constitutional ban on double jeopardy, or being tried twice for the same crime.
Garcia Zarate was convicted in San Francisco Superior Court last year on a state charge of being an ex-felon in possession of a gun. He was acquitted of murdering Steinle.
Steinle was killed with a ricocheting bullet from a stolen gun as she stood on Pier 14 with her father on July 1, 2015. Garcia Zarate's defense lawyers acknowledged that he picked up the gun from under a bench where he was sitting, but said it fired by accident.
Several days after the close of the Superior Court trial, federal prosecutors filed the U.S. charges against Garcia Zarate.
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