Poland decides to hold an election to replace president killed in plane crash . Mourners line up for hours to pay respects to first couple . Draped in Polish flags the caskets were lined up side-by-side by an honor guard during a solemn ceremony at Warsaw 's airport . Violence breaks out over decision to bury Kaczynski alongside former monarchs .
Poland decides to hold an election to replace president killed in plane crash . Mourners line up for hours to pay respects to first couple . Violence breaks out over decision to bury Kaczynski alongside former monarchs .