Sleuth who can crack a murder with blood taken from mosquitoes

NAGOYA–It’s the classic midsummer night’s whodunit murder mystery: A locked room, a corpse, a dead mosquito, no witnesses, and no obvious clues.
But Yuji Hiroshige, a senior researcher at the crime lab of the Nagoya prefectural police here, reckons such a case is eminently solvable.
Just extract the blood from the mosquito, run a DNA test and bingo, a match can be found–unless, of course, the insect bit the victim, not the perpetrator of the crime.
As Sherlock Holmes would say, “Elementary, my dear Watson.”