The officer, who was off duty, killed one gunman and wounded two others.
The helmsman was killed and the officer of the deck seriously wounded.
During this period, the 2/3rd lost five officers and 56 men killed or wounded.
Detective Chaney said it was unclear whether the officer actually wounded the man.
Last year, the Police Department's figures show, its officers shot to death 18 civilians and wounded 44.
It was left with only 400 effectives, having suffered 46 officers and 3,000 soldiers killed or wounded.
First business the other day, as always, was a review of members-to-be - officers wounded since the last monthly meeting.
During these attacks, the brigade lost 32 officers and 489 men killed or wounded.
The 1st/71st lost 16 officers and 171 men killed and wounded at Waterloo.
One man was killed, and her commanding officer wounded.