MIAMI(CBS4)- The family of a man shot and killed last month is making a public plea in hopes that a recently released surveillance tape will help them find the gunman responsible.

On Thursday, police released surveillance video from the murder of Linbirg Clark. Clark, 74, was gunned down in the area of N.W. 52 Street and N.W. 20 Avenue on July 28.

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Family said he was a man with a passion for music and a daily habit of playing the lottery. Clark’s niece, Laticha Ellison, said that’s what he was doing just before he was killed.

“The day of July 28, 2011 approximately 6:45 in the morning my uncle went to do his lotto as he usually do,” she said. “From my understanding he played his lotto, he scratched his tickets, he proceeded out of the store and from there I can’t tell you what happened. All I know is that at 12:30 in the afternoon I got a call saying that my uncle was dead.”

Surveillance video shows two men approaching Clark’s car and later running from the scene.

“We believe that these individuals are the individuals who killed Mr. Clark,” Detective Mike Scott with the Miami-Dade Police Department said as he showed the footage.

Clark’s family hopes it will prompt someone to come forward with information about the case.

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Police want the public to take a good look at the video to see if anyone recognizes who might be responsible for his death.

“He was an international blues singer that traveled all around the world,” Ellison said. “He did it for over 50 years. It was his passion.”

Ellison said the family wants answers.

“I just don’t understand how a person can take a 74-year-old man’s life senselessly the way that they did. My uncle who did not deserve this… if you would’ve asked for anything he would’ve given it to you he helped so many people,” Ellison said.

Scott said anyone with information should come forward.

“If people out on the street know or have info in regards to this case, we strongly urge them to contact the Miami-Dade department homicide bureau,” Scott said.

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Anyone with information is asked to call Crime Stoppers at 305-471- TIPS.