Starting out at age fifteen Mack found his first job at a local radio station in central Pennsylvania. According to Mack, once he got a taste of what it was like to be an on air talent/DJ there was nothing else he wanted to be. Mack would then go onto legendary Top 40 radio station Q102 Philadelphia, where he practiced his skills amongst some of the radio's greatest. Mack also said Learning from these influential people was an eye opening experience. "I can't tell you how many nights I slept in the studio waiting to do my shift."
Correspondent John King, a Boston native, said authorities have a clear video image of a “dark-skinned male” placing a package at one of the bomb sites and then leaving the area before the explosion.The breakthrough came through analysis of surveillance video from the Lord and Taylor store in Copley Square. King said his sources said the video is said to be so clear they can see the suspect’s face. It’s not known if they know the man’s name.King said police used also video from a Boston television station to identify the individual.