A 20-year-old Harrisburg man pleaded guilty Monday to trying to help the Islamic State group and to tweeting out a list that identified and targeted people serving in the U.S. military. Jalil Ibn Ameer Aziz faces the potential of up to 25 years and a $500,000 fine after admitting to a charge of conspiring to provide material support to the Islamic State group and to transmitting a communication containing a threat, both felonies. Aziz, a natural born American arrested in Harrisburg in December 2015, used about 70 different Twitter accounts and an encrypted mobile messaging application to spread messages from...