Palo Alto police have arrested a man who they believe stabbed another man in the back in an alleyway behind Happy Donuts last month.

Palo Alto resident Daniel Vasquez, 23, was arrested Friday in connection with the stabbing, which occurred in the early evening on Sept. 22. Shortly after 7 p.m. that day, the police department's dispatch center received a call from someone who said that a man had been stabbed earlier in the evening.

Police officers and firefighters responded to the area outside Happy Donuts, at 3916 El Camino Real, and found the victim, a man in his 20s, with a single stab wound in his back.

The victim told police that he didn't see who stabbed him and had no idea why someone would do that.

The victim was taken to a local hospital, from where he had since been released. Police said he is expected to make a full recovery.

Since that incident, detectives obtained information identifying the suspect as Vasquez. On Friday, they obtained an arrest warrant for Vazquez, charging him with one felony count of assault with a deadly weapon.

Police said at about 4 p.m. on Friday, detectives located Vasquez at a residence on the 3900 block of El Camino, near Happy Donuts.

Police told the Weekly the stabbing did not appear to be a random incident. Detectives re-interviewed the victim and witnesses and the information led them to Vasquez. Police said the victim and Vasquez knew each other.

Anyone with information about this incident is asked to call the police department's 24-hour dispatch center at 650-329-2413. Anonymous tips can be emailed to paloalto@tipnow.org or sent via text message or voice mail to 650-383-8984.