Moon Knight #17 (1980)

VF/NM

Script: Doug Moench 
Pencils: Bill Sienkiewicz 
Inks: Steve Mitchell 

One of Spector's oldest spy friends contacts him about taking a secret package that exposes Nimord Strange and his organization to Switzerland but Marc refuses. That is, until this friend is killed in his own house by Strange's deadly assassin the Master Sniper. After he takes the Sniper down, Marc visits his friend's grieving widow in Israel and agrees to carry on his work.