Roberto Gonzalez, 28, was also charged with felony assault with a knife and felony assault, and pleaded not guilty to all charges at the arraignment, Wagstaffe said.
He allegedly attacked a man in a homeless camp in Menlo Park on Aug. 28 with two knives, accusing him of killing his brother, according to a Menlo Park Police Department report.
A witness tried to intervene but ran away when he saw the knives.
The victim of the attack was able to get away and found a parked ambulance and reported the incident. He was taken to Stanford Hospital with non-life-threatening injuries, and was treated and released.
The case has been continued six times because Gonzalez's attorney asked for more time to prepare, Wagstaffe said.
Gonzalez is being held on $100,000 bail in San Mateo County Jail.
He could face a maximum of 14 years in state prison if convicted on the attempted murder charge, Wagstaffe said.