article_snippet: Some residents reported seeing two to four men enter the apartment complex on foot through a vehicle gate before the shooting, according to Cotner.
article_snippet: In black-and-white soundless surveillance video, one person who appears to be carrying a rifle is seen running just ahead of a second person, Dallas police Officer Monica Cordova said.
article_snippet: one person who appears to be carrying a rifle is shown walking at a slower pace, holding what appears to be a handgun in one person who appears to be carrying a rifle right hand.
article_snippet: Approximately 13 seconds later, another person comes into view and passes by the camera, followed by a fourth individual who is walking, another person said.
article_snippet: From the vantage point of the camera, it is difficult to make out any of the features of the suspects or even the gender, although police have said police are looking for four black males.
article_snippet: Witnesses say multiple shots were fired from what is believed to be a rifle.
article_snippet: Cotner said police are conducting tests to find out whether more than one rifle was used in the shooting, but Cotner said Cotner could not reveal the make or model of the weapon.