From the website you linked:
Shabazz died in Mexico City on May 9, 2013 at the age of 28.He was said to be on a tour to demand more rights for Mexican construction workers relocated to the USA. His body, which according to prosecutors had been badly beaten with a rod of some kind, was found in the street in Plaza Garibaldi, a busy tourist spot.According to New York magazine, a friend who was with Shabazz the night of his death said the beating was related to a dispute over a $1,200 bar tab for drinks and female companionship. On May 13, David Hernandez Cruz and Manuel Alejandro Pérez de Jesús, waiters at a nightclub called The Palace, were arrested in connection with Shabazz's death. In 2015, Pérez de Jesús and Juan Dircio Guzmán, the headwaiter at The Palace, were each sentenced to terms of 27 years and six months for their roles in the murder.
As of June 2015, Hernandez was awaiting trial and a fourth suspect was still being pursued by police.