Diaz as cases snowball, ski resorts work to stay open. Can you pull up your mask for me . Diaz and later, a timely honor for an aspiring innovator we first met three years ago. Has it sunken in yet, or are you still flying high . Im still flying high. This is the cbs weekend news from chicago. Heres adriana diaz. Diaz good evening. There is breaking news tonight. Investigators have identified a person of interest in the Christmas Morning bombing in nashville. Today, agents combed through a severely damaged downtown looking for clues after a parked r. V. Rigged with explosives blew up. At least three people were hurt. Cbs news chief justice and Homeland Security correspondent jeff pegues is at f. B. I. Headquarters tonight with new developments. Jeff, good evening. Reporter adriana, Law Enforcement sources tell cbs news that the leading theory right now is that the person responsible for that bomb blast may have been killed in the explosion. Were also being told d. N. A. Tests are being