*To see the suspects, click on the "click here to watch" video link to the side of this article.*

No matter the crime, you have the power to speak up.  And no one ever has to know it was you who called.

Crime Stoppers detectives are asking for tips to identify people connected to three recent cases.  In any of these cases, or any other crime, anyone with information is urged to call Crime Stoppers at (205) 254-7777.  Also, encrypted tips can be submitted online by logging onto www.birminghamcrimestoppers.org and following the instructions on the main page.

Case #1:  Surveillance video shows a man walking into a business along 3rd Avenue South in Avondale.  The man takes out a piece of paper and makes some small-talk.  Then, a moment later, video shows him pulling a gun and firing a shot at close range toward a man in the business.

Detectives describe this as a robbery attempt that could have easily turned into a homicide.  The intended target of the gunfire was not hit.  But authorities are urgently working to identify the man seen in the video.

"Take a look at the build and the make-up of this guy," Detective James Lewis said in regard to the surveillance video.  The man is seen wearing a Birmingham Water Works shirt.  "Whether he works for the water works board or not, someone's going to be able to identify this guy."

The color and clarity of the video are somewhat poor.  While the shirt appears gray on the tape, Crime Stoppers is told the shirt was actually royal blue.  And recently, a gun-toting suspect was caught on camera in Center Point, also wearing a royal blue shirt that appeared to have a water works logo.

It is unclear if it is the same suspect in both the Avondale and Center Point cases.  But anyone who recognizes the suspect(s) from the Avondale and/or Center Point video is urged to call Crime Stoppers.  An anonymous tip could help detectives learn who the man is, and an arrest could be made.

The first anonymous caller who provides information leading to an arrest qualifies for a cash reward.  Callers are given code numbers, which keeps them from having to give their names.  Then, they use the code numbers to see if an arrest was made and to learn if they qualify for the reward.

Case #2:  On June 11, a man was shot outside an adult book store along 8th Avenue North.  It was around 1:00 p.m.  Police say the gunman was trying to rob the victim when the shot rang out.

The suspect in this case was caught on surveillance video as well.  The video is black-and-white, and while it could be difficult to tell who the suspect is, viewers are urged to look at the suspect's build and think back to what they've heard, if anything, about this case.

"He don't have any remorse for anybody because (he's) out there with a gun, looking for trouble," Lewis said.

Anyone who recognizes the suspect is reminded that Crime Stoppers does not use Caller ID or record calls.  Also, Crime Stoppers cannot call people to court to testify, since no identification is provided by callers.

Detectives will take any tips that come in and will work to verify the information.  If the information proves credible, they will work to make an arrest, and as in the Avondale case, the first caller with the correct information qualifies for a reward.

The suspect in this case ran from the shooting scene.  The location was near downtown and Norwood, meaning the man could be known in those areas.

Case #3:  Detectives need more help to identify a man who is seen in a cell phone picture.  The man is considered a person of interest who may have information on the beating and robbery of a woman on Birmingham's Southside.

The crime took place on June 29, and detectives hope someone will help identify the person of interest.  Their goal is to enhance safety in all of Birmingham's communities.

Crime Stoppers is ready to take a tip in this case, and all cases, 24 hours a day, seven days a week.

Crime Stoppers is a partnership between local law enforcement, the Birmingham Regional Chamber of Commerce and ABC 33/40.  Together, our goal is to make our community a safer place to live and work.