The earliest known victim of the Watermans was from 1950, so assuming they killed at least one child every Halloween until 1979, that would bring their number of victims to 29.

Adding those from the other years we know about (years with two children such as 74, 77, 79, and 83) brings their number of victims up to at least 34.

Jade Gazzini might be related to Murray Gazzini, due to the same surname, and also they’re the same species, that being bears.