In April, 36-year-old Victor Walker was shot and killed and police are still not close to solving the case.
On Thursday, Walker's grandmother reached out to the community, hoping to find the person who killed her grandson.
Gripping a tissue and trying to hold back tears, Simmons spoke about her grandson.
"He was a good person," said Rosetta Simmons.
He was a father of two, a man she said was very close to God. But one night in April, Walker was shot to death outside of a supermarket in Northwest Miami-Dade County.
"It's very tough," Simmons said. She told how Simmons' daughter said that if her father was here, she would have everything she wanted for Christmas.
For months police have been trying to piece together what happened.
Here's what they know.
The shooter was armed with a high power rifle and got away in a white or cream colored car. But that's where the trail goes cold.
Walker's grandmother drove hours sit in front of news cameras and tell Walkers story. She's hoping somebody, somewhere, can help police find her grandson's killer.
"Please, please find him. Please help," she said. "Victor's gone now. We can't save him. But we can save other lives if we were to find his killer."
Police say they are still trying to figure out a motive.