The 52-year-old Luchko, of Collingdale, admitted he conspired with others to delete years worth of Fumo-related e-mails.
Fumo heads to trial next month on 139 fraud- and corruption-related counts.
Fumo is charged with defrauding the state, a museum and a nonprofit of more than $2 million. He is stepping down after 30 years in the Senate to fight the charges.
