San Francisco Sheriff Who Let Kate Steinle's Illegal Alien Killer Walk Was Sentenced For Domestic Abuse in 2012.[ Full title ]. ... San Francisco Sheriff Ross Mirkarimiis is defending his decision to release illegal alien, seven time felon and five time deported Francisco Sanchez onto the streets of his sanctuary city today after Sanchez shot and killed 33-year-old Kate Steinle while she was on a walk with her father last week. Mirkarimiis is being accused of being complicit in Steinle's killing after Sanchez admitted in a jailhouse interview that he chose San Francisco due to sanctuary city policies. Those policies...