According to the authorities, at around 6:37 pm, officers responded to a complaint of aggravated assault with a deadly weapon in a house near the 700 block of Thomas Chapel Drive.
During their investigation, police learned that the suspect, later identified as a 31-year-old man, had wounded a victim's head and arm by attacking him with a baseball bat.
The inspectors stated that the victim was able to leave the residence where the attack took place. Police said that when they arrived home, the 31-year-old man refused to go out and talk to the police.
At around 8:01 pm, the authorities stated that the suspect opened the front door and went to the front porch.
According to the police, the suspect pulled out of his belt what the police thought was a handgun and pointed at them.
At this point, three police officers fired at the 31-year-old man and beat him. The suspect was declared dead on the scene.
The three officers involved in the shooting were put on standard administrative leave.
Police said police had gone to the same residence the day before Saturday's shooting to investigate a claim of invasive visual registration of a child.
Arlington police said the case involving charges of invasive visual recordings was still under investigation.