During the last three years, Sharee Brooks has pieced together much of what happened the night her son was murdered outside a popular Riviera Beach convenience store.

After all, the streets talk.

But they haven’t said enough to lead to an arrest in Connis Robinson’s August 2015 murder.

"That’s why this upsets me so much," Brooks said. "Everybody knows. They know what happened to my child."

Riviera Beach police have pinpointed a motive — a beef the 25-year-old’s cousin had with some men — and narrowed the suspects to two.

"Unfortunately, I need a little bit more," said Riviera Beach Detective Francisco Aguirre.

A still shot from surveillance footage of the man who killed Connis Robinson in August 2015 outside a Riviera Beach convenience store. (Provided by Riviera Beach police)

So Brooks waits for the justice she promised her son during his final hours alive at St. Mary’s Medical Center, a justice she insists comes in a courtroom, not on the streets.

"I don’t want anymore bloodshed," Brooks said this month. "In the beginning I did. I was angry. ... But the more I talk to God, I forgive.

"I just want justice."

Robinson, Brooks’ oldest son and a father of five, was shot dead at point-blank range Aug. 11, 2015, outside the Touchdown Food, or "Tiger," Store on Old Dixie Highway while he slept in the front passenger seat of a friend’s car.

Surveillance-camera footage from the city’s SKY1 technology as well as from the store show the gunman head for the passenger side of the car, fire multiple rounds and run off. The city’s ShotSpotter system detected seven shots.

Connis Robinson was shot shortly before 11 p.m. Aug. 11, 2015, while sitting in a car outside the Touchdown Food Store in Riviera Beach.

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Robinson died the next morning, leaving Brooks in a years-long haze of grief and anger marked by the ever-present question, "Why?"

To not figure out what happened: "I would be less than a mother to not get out and do my part," she said.

Many cases, like Robinson’s, were "targeted attacks" in which detectives have a good feel for who the gunman was, but not enough to make an arrest, police said.

That isn’t, and never will be, enough for Brooks.

"I’m not gonna stop until I have my day in court with the young man who pulled the trigger," she said.