28-year-old Lamzar Samba, a student at the St. Petersburg Communications Institute, was gunned down outside a nightclub.
Investigators said he was apparently shot with a hunting gun decorated with a swastika.
The killing was the latest a series of recent attacks in Russia on dark-skinned foreigners and Russian Jews, particularly in St. Petersburg.
Human rights activists say authorities do little or nothing to combat such crimes.
(compiled from agency reports)