The maximum penalty for Qualified Murder is 30 years. The charges were set by the Judge in November when it accepted the Prosecutor's charges and rejected the request by the family of Stephany Flores to increase the murder charge to one carrying a life sentence. He's also charged with simple theft/robbery.
As to the statutes:
Article 185 .- Simple Theft, Article amended by paragraph 1 of Article 29 of Legislative Decree No. 1084, issued on June 28, 2008, which reads as follows:
"Whoever, for profit, unlawfully seized movable property, in whole or in part outside, removing it from the place where found, shall be punished by imprisonment of not less than one nor more than three years. They are comparable to movable electric power, gas, water and energy or any other item that has economic value as well as the electromagnetic spectrum and to fishery resources allocation mechanism of maximum catch per boat. "
As to the Qualified Murder charge:
Article 108 .- Homicidio Calificado - Asesinato - Article amended by Article 1 of Law No. 28,878, published on August 17, 2006:
Shall be punished by imprisonment of not less than fifteen years to kill another meet any of the following circumstances:
1. For ferocity, for profit or pleasure;
2. To facilitate or conceal another crime;
3. With great cruelty or premeditation;
4. For fire, explosion, poison or any other medium capable of endangering the life or health of others;
5. If the victim is a member of the National Police of Peru or of the Armed Forces, Head of the Judiciary or the Public Ministry, in carrying out their duties."
Peru also has a charge of Homicide by Violent Emotion and Simple Murder but Joran isn't charged with those:
Article 109 .- homicide violent emotion
He who kills another under the influence of violent emotion that circumstances make it excusable, shall be punished by imprisonment of not less than three nor more than five years.
and
Article 106 .- Simple Murder
He who kills another shall be punished by imprisonment of not less than six nor more than twenty years.
In March, 2011, Joran's lawyer indicated he would try to have Joran plead to Homicide by Violent Emotion, but I guess that didn't work out.
Peru's Constitution does provide for the presumption of innocence:
Chapter I Fundamental Rights of the Individual
Article 2 Every individual has the right:
...24. to personal freedom and security.
Consequently:
...e) Every person is considered innocent until proven guilty in a court of law.