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Thousands of mourners gathered Wednesday at funeral services for the 15-year-old affectionately known as Junior. And on Thursday, they took action in hopes of preventing another such tragedy in the future.
VIDEO: Funeral held for 15-year-old Lesandro Guzman-Feliz
The community is now fighting back against street violence, and at a rally on the steps of City Hall, Councilman Ritchie Torres announced he is pushing for more funding to be aimed at wiping out gangs.
"The legacy that Junior leaves behind, captured in the words 'Justice for Junior,' has become a national rallying cry against...violence," Torres said. "And the challenge for us is to harness the power of his legacy to set our communities free from the disease."
VIDEO: 7 suspects appear in court in murder of innocent Bronx teen
Torres also announced a partnership with Yeshiva University called Care Cafe, which will bring mental health professionals and trauma experts to assist grieving residents impacted by gang violence.
RELATED: Eighth man arrested, charged in connection with the murder of 15-year-old Bronx teen
The attack happened outside a deli on East 183rd Street and Bathgate Avenue in the Tremont section just after 11:30 p.m. last Wednesday, in what authorities believe was a case of mistaken identity that left the entire community outraged.
Guzman-Feliz was dragged outside and slashed and stabbed with a machete after police say the group of gang members mistook him for a rival. The teen, who had hopes of becoming an NYPD detective, tried to run to St. Barnabas Hospital a block away but collapsed on the sidewalk.
"This investigation is not over," NYPD Chief of Detectives Dermot Shea said. "The brutal nature of this crime, we will leave literally no stone unturned."
VIDEO: NYPD cracking down on violent Trinitarios street gang after spate of incidents
Authorities say the men are all members of the Trinitarios gang, which is also believed to be involved in the stabbing of a 14-year-old on the Bronx River Parkway last week.
The NYPD is now cracking down on that gang.
"Pick up a gun, pick up a machete, rob an elderly victim walking home from the train is a one-way ticket to prison," Shea said.
The NYPD said they added extra staff to the CrimeStoppers tip line because they received a "torrent of tips" related to the case. The public is urged to continue to provide information, and anyone with information should call 1800-577-TIPS.