In the strictest sense, it is true that a widower can remarry, and it is also true that Schiavo didn't actually murder his wife in the legal sense of the word. However, I believe it is also a priest's prerogative not to perform the wedding. But there are enough leftist Culture of Death priests out there who are willing to accomodate this parasite, the priest and Schiavo should be excommunicated.
On what basis?