Today I woke up, knowing I would be saved from the destruction of the planet. Instead I learned the exact date and time of my death. My name is Joe Average. The planet I live on is part of a binary pair, orbiting a reddish star. In one year and fifty-seven days a giant asteroid will pass by my planet, disrupting its gravity and smashing it into the other. However, Mr. Benevolence promised there were enough ships to carry a quarter of the planets' population, only 1% has left! And my (nonexistent) ship was supposed to leave tomorrow!
But, as fate has it, Mr. Benevolence is a liar (and a fat one, too). The last ships left the day before, but someone who actually had a conscience revealed the lies. They gave the exact date of the disaster, and told everyone that there are no more ships that can sustain life for the trip.
1% of pretty much any group you can think of has left the planet. Also, major religious leaders are gone. 1% of everyone else is going, and the richest .5% of people were able to afford their own ships.
Note - Of the people left, there are about 7,880,000,000 people evenly spread across the two planets. Only a quarter of these have access to spaceships able to fly and go 300 miles an hour. Only a quarter of those have access to ships that can travel between the two planets, which travel at about the same speed.
How would people react to this? As mentioned above, everyone will burn in about a year. Assume their society is similar to modern North America. Will there be massive riots? I'm assuming suicide rates will skyrocket, is this true? How else might people react?