Apparently, U.S. Immigrations and Customs Enforcement (ICE) had Sanchez in their custody, but turned him over to San Francisco to finish serving time for a drug charge. The city was supposed to turn him back to ICE afterwards, but didn't
Flashback-Hillary: Sanctuary Cities Protect 'Safety and Security of All Citizens'
Sanctuary cities are being debated in wake of the murder of Kathryn Steinle in San Francisco last week by illegal immigrant Francisco Sanchez who chose the northern California city as his refuge because it was a sanctuary city - a city that doesn't arrest or turn over to the federal authorities any aliens who come into the country illegally.