The officials said that they were investigating the shooting and killing of the protester

The protests began a month ago, calling for better pensions and wages for young people, and expanded to capture the woes of Peruvians tired of crime, corruption and decades of disillusion with their government

"My responsibility is to maintain the stability of the country; that is my responsibility and my commitment," Jerí told the local press after visiting Peru's Parliament, where he said he would request powers to combat crime

After Jerí, the seventh president in less than a decade, was sworn in on October 10, protesters called for him and other lawmakers to resign

Peru's prosecutor's office announced on Thursday that it was investigating the death of 32-year-old protester and hip-hop singer Eduardo Ruíz, who prosecutors said was shot by firearm during the mass demonstration of thousands of young people