A woman was shot and killed by an Arlington officer who was trying to shoot an aggressive dog Thursday afternoon.
According to reports the victim Margarita Brooks,30 was passed out in a grassy area near Collins St and Canton Dr when authorities responded to a welfare check on her.
As the officer started to approach the woman he said he noticed an unrestrained dog that began barking and running towards him.
He said he then pulled out his gun and fired several rounds towards the dog.
He then heard a woman screaming and noticed that she had been struck. 
Emergency crews transported the woman to a nearby hospital where she later died.
The officers name has not been released at this time and he was wearing a body cam that will be used as part of the investigation.
