Calvillo was killed June 29, 2015. In two days, she would have celebrated her 17th birthday.
A fundraising event was held Sunday at Wicker Memorial Park in Highland, Ind. Proceeds will go toward educational scholarships, said her mother Ollie Hubbard.
Her mother released balloons in memory of her daughter during the event, which also featured a bounce house and other family friendly activities.
Less than 24 hours before Calvillo was shot, another man had been shot on the same block of Beall Avenue. A group was gathered when the second shooting broke out. A group of school children were also in the area. When gunfire started, Calvillo helped get the children out of the street.
"She is a hero. She saved five kids," Hubbard said.
Her murder remains unsolved.
In July 2015, Assistant U.S. Attorney David A. Capp, of the Northern District of Indiana, said that Calvillo was the "heart and soul" of federal law enforcement's ongoing gang investigation in the region.