Nope it wil not be public. That is the risk you take for attacking Israel. Whoever abducted him.. if it is the Mossad God bless them.. they always get their man/woman. As far as the Shin Bet... they will get whatever info they need...
Two seriously wounded in crime-related shooting in Netanya (Haaretz)
from the article: 'Hamas weapons capability increased four-fold over last five years'