you are right - this is 100% horsecrap
1) they found birth certificates
2) They cannot find burial records
3) So... the nuns killed babies and stuffed them in the sewer...
?????
They are pieces of crap for writing this
Nobody is saying that.
Just that when the little bastards died (death certificates on record) the nuns disposed of the bodies off-book in the unconsecrated ground used for sewage disposal.
http://www.thejournal.ie/human-remains-found-baby-home-tuam-3268465-Mar2017/