The baby killer is Yisroel Vales (also Wallis and various other spellings).
Rabbi Wachtfogal's father was a mashgiach (the dean of students who deals with the students' spiritual needs) of Lakewood Yeshiva, the same position Rabbi Matisyahu Salomon holds today. Wachtfolgal was a leading force behind the ban of Rabbi Natan Slifkin, the "Zoo Rabbi."
Rabbi Schorr is, I think, the brother of Rabbi Avrohom Schorr, the leader of the Lipa Schmeltzer concert ban and a co-signer of the Slifkin ban.
Here is the letter. Please click to enlarge:
The Yated Ne'eman article apparently sent with the letter. Please click to enlarge:
The fundraising letter carries this return address:
Rabbi Dovid Schustal
641 Sixth Street
Lakewood, NJ 08701
641 Sixth Street is Rabbi Schustal's home. Please click to enlarge:
What is S.G. C. F.?
Probably the Stam Gemilas Chesed Fund, Inc. Please click to enlarge: