What caused the SFPD to make an arrest on apparently thin evidence? At the time the case was presented to SFPD there was no forensics that proved this was a criminal homicide, there was no evidence that pinpointed the cause of death, there was no nexus between the person of interest and a crime. Simply put the police did not establish enough evidence to prosecute the person of interest. SFPD needs to explain their thinking in making an arrest on such thin evidence. How will this premature arrest affect the continuing investigation?