If you count people Merlino ordered other people to kill he has several victims.

It was Stanfa's kid he tried to kill on the Schuylkill.

George Borgesi is strongly suspected of killing Ralph Mazzuca. Among others.

http://articles.philly.com/1995-02-25/news/25704548_1_mob-ties-mob-leader-joseph-skinny-joey-merlino

I invoke my right under the 5th amendment of the United States constitution and decline to answer the question.