A neighbor twice saw Mango with dead rats. Either or both may be overlaps of the two prior confirmed kills, or they may be separate. Street sweepers come by several times per day, so there may be additional kills that were not reported.
And Mango doesn't appear to be killing all by himself.
My lovely wife spotted Mango and Pear playing around her scooter and running under its cover and out again. A bit later, we went out and there were fresh blood stains and a rat corpse next to the scooter. Closer inspection revealed multiple blood stains inside the scooter's cover. It looked like a scene from a Quentin Tarantino movie scaled down to rat size.
Rats are much more rare in the village as they were when I first moved in. If these two little bundles of rodent-murding cuteness keep up their killing spree, my section of the village will run out of rats pretty soon.
Stripy Emperor and Bronze Cat spent some time consulting before giving Mango and Pear a commendation for their action and also granting them both the additional title of "Slayer of Rats."