Muyloco covered it pretty well above.
"DHS records indicate ICE lodged an immigration detainer on the subject at that time, requesting notification prior to his release so ICE officers could make arrangements to take custody. The detainer was not honored," ICE said in a statement Friday afternoon.
Kathryn Steinle was killed Wednesday evening at Pier 14 -- one of the busiest tourist destinations in the city.
Police said Thursday they arrested Francisco Sanchez in the shooting an hour after it occurred.
"His criminal history includes seven prior felony convictions, four involving narcotics charges," ICE said in a statement.
ICE briefly had him in their custody in March after he had served his latest sentence for "felony re-entry," but turned him over to San Francisco police on an outstanding drug warrant. At this time, ICE issued the detainer -- effectively asking that he be turned back over to ICE when San Francisco was finished with him.
But ICE was not notified. The incident is sure to renew criticism of San Francisco's sanctuary city policies.
"Here's a jurisdiction that's not even honoring our detainer for someone who clearly is an egregious offender,"