Dr. Eowyn It is said that false-flag mass shootings share certain characteristics, one of which is that the shooting was preceded by an active shooter drill at the place of the subsequent mass shooting or a nearby place. And so it is with the mass shooting yesterday at the Tree of Life Synagogue in the Squirrel Hill neighborhood — a Jewish enclave — of Pittsburgh, Pennsylvania. Eleven were shot dead, ranging in age from 54 to 97; the average age is 74. Note: The Tree of Life Synagogue is at…