PHOENIX — As 2018 comes to a close, police are still working to get criminals off the streets.
Silent Witness sent ABC15 videos of three unsolved robberies that happened this year.
The first case is in a liquor store parking lot on 19th Avenue. Police say two men tried to force a woman out of her car and take her keys, before being chased off by a witness with a gun.
In the second case, suspects are seen waving guns and taking cash at a Circle K on 35th Avenue.
Police say in the third case, two suspects try leaving a Family Dollar store on Van Buren.
When an employee locks the door and doesn't let him leave, the suspect is seen breaking open the door and getting in a physical confrontation with the employee.
Police say this year, more people have been using their website to submit tips, instead of calling.
If you have a tip you can call 480-WITNESS or go to silentwitness.org.