AKRON, Ohio - One month after Zack Husein, 21, was killed during a robbery at his family's Akron pizza store, detectives say they are making progress on trying to identify his killer, but any piece of additional information they can get is helpful.
Husein was closing the Premium New York Style Pizza shop when a masked suspect came in waving a gun.
He complied with all of the suspect's demands but was shot and killed anyway.
The crime was captured on the store's surveillance camera and shared by the Akron Police department hoping it would help identify the killer.
After viewing the video the viciousness of the crime sent chills through the Akron Police Department.
"That's somebody that is very dangerous because if they are not going to hesitate to shoot a person like that they won't hesitate to shoot anybody including somebody in law enforcement," said Akron Police Lieutenant Dave Whiddon.
In the weeks since the killing Whiddon says a reward has helped generate tips, some of them good, but police are still divided over whether the killer is a man or a woman.
They also believe someone knows or saw something that can help them solve the case and they don't want their decision to call with good information influenced by any wrong conclusions.
"I'm pretty confident if we get the right person to call who has some inside information you know, not just basing it off of watching a video, but has inside information in addition to what the public has seen on the video that would be a great help," said Whiddon.
"I don't think our detectives need that much to work with to make progress and it just takes the right call the right person that's got inside information," he added.
Husein's brother, Ammar Husein, says the crime was difficult for his family to cope with.
"Initially it is very hard very, very hard that there is no closure there is no there aren't words invented yet that can explain certain ways that you feel," said Husein.
He remains optimistic that it is only a matter of time before police find his brother's killer.
"They seem to be heading in the right direction they are giving us positive feedback, ultimately we need justice, this is not acceptable," said Husein.
Their emotional mother went inside the pizza shop for the first time since the murder on Tuesday, nervous as she approached the spot where Zack was killed.
His relatives have relied heavily on their faith.
"Some of us live for here. Some of us live for the hereafter and with Zack he lived for the hereafter and that's a martyr. That's somebody who died doing something right and he was an innocent person who was murdered," said Ammar Husein.
Police say they are working on other unsolved crimes and do not want to prioritize any as being more or less important than this one.
Investigators still believe the same person may have been involved in several other robberies including one at a nearby Family Dollar during which a shot was fired in the direction of the store clerk.
The bullet missed, ricocheting off of a metal counter top.
They fear if Husein's killer is not caught he or she will not be afraid to kill another innocent person.
"Maybe you can help us and that might help you," said the victim's brother, adding, "Maybe you can ignore us and that might hurt you so ultimately that goes out to everybody."