An 86-year-old man was killed Saturday morning when he was struck by an Amtrak train in Baltimore. Yong So Kim of Baltimore was hit by a Northeast Regional train heading from Baltimore to Washington about 1 a.m. on the 1700 block of E. Preston St., according to Baltimore police and Amtrak spokeswoman Danelle Hunter. Hunter said the Train 177 was delayed an hour and 42 minutes but no other trains were affected.