Several incidents of violent crime over the last 48 hours left two Israelis killed and another three seriously injured.
Since the beginning of the year, 49 Arabs have been killed in incidents of crime and violence in Israel.
The suspect was violating restrictions placed on him after he put up the flag of a terrorist organization on the Temple Mount.
The San Francisco Police Department said late on Tuesday that a 43-year-old man was stabbed early in the day and succumbed to injuries in the hospital.
Videos on social media are teaching terrorists how best to carry out stabbings and shootings against Israelis.
A Wisconsin woman allegedly told police she attacked her ex, who was asleep on the couch, because “thought she saw something, a dark, non-human figure."
Police arrested the student, who told officers he was possessed and heard voices that instructed him to attack the teacher.