Dirty Pair: Flight 005 Conspiracy

Universal flight 005 has exploded mid-flight, killing three hundred passengers; but when no one steps forward to file an insurance claim, the 3WA is called upon to investigate - and Kei and Yuri get assigned to the case! Oddly enough, they are also assigned a second case, this one involving a missing scientist. Why did the central computer assign them both of these cases? Could they possibly be connected? The Dirty Pair don't know, but they are sure going to find out - if they can avoid everyone that is trying to kill them!