[gbcdoj]

You can't excommunicate anybody twice unless they are "accepted" back into the Church in the interim.

Source? If not, I'll take the opinion of an expert canonist like Cardinal Lara over yours. The Code nowhere says that someone cannot be penalized with multiple excommunications.

[Land of the Irish]

I'll take the opinion of an expert canonist like Cardinal Lara over yours.

Go for it!

He (Lara) was consecrated a bishop, with the Titular See of Praecausa, in 1973 and then made an Archbishop in 1982. Pope John Paul II made him a Cardinal in 1985.