The students gathered for the improvised rally outside the regional government headquarters, chanting their plea for life.
An Interior Ministry official came out to assure them that regional law-enforcement agencies were doing everything possible to solve the murder of Angelis Urtado Enrique Arturo.
"Of course, we cannot provide every foreign student with a policeman. Especially in the woodlands, where [this particular] crime occurred. But we guarantee that the crime will be solved shortly."
A criminal investigation is underway, but no suspects have yet been detained in connection with the student's murder, the regional prosecutor's senior aide said Tuesday.
The 19-year-old architecture student from Peru and three companions were attacked by about fifteen Russian youths in a downtown recreation area in Voronezh, 310 miles south of Moscow. Arturo was stabbed to death and two of his friends - a fellow Peruvian and a Spaniard - were severely injured.