There are lots of unsolved cases, kidnappings for ransom too.
I've found four unsolved abductions over a six year period that look very close to his work.
It was always young girls so I started looking at old unsolved cases; missing children as well as murders.
One more unsolved gangland slaying.
Not with this unsolved issue hanging over their head.
A more plausible theory is that the author is an honest thinker, a keen observer and critic of life, who sees that the world is full of miseries and unsolved problems, regards as futile the attempts of his time to demonstrate an ethically active future life, and, recognizing a divine author of all, holds that the only wise course for men is to abandon the attempt to get full satisfaction out of the struggle for pleasure, riches and wisdom, and to content themselves with making the best of what they have.
Critics have also urged that Kallay; fostered the desire for material welfare at the cost of every other national ideal; that, despite his own popularity, he never secured the goodwill of the people for Austria-Hungary; that he left the agrarian difficulty unsolved, and the hostile religious factions unreconciled.
The best mode of utilizing the buildings of the suppressed religious houses was a difficult question left unsolved by Henry VIII.
The tradition has been the subject of much controversy, and is still an unsolved problem.
By means of this coalition the Ministry succeeded, indeed, in passing the military service reforms on April 24 1911 (reduction of the three years' service to two years, combined with an increase in the contingent of recruits); but this completely exhausted its parliamentary strength, and the first parliamentary suffrage Parliament ended with but poor results in the midst of unsolved national problems.
The question of the derivation of the myth of the Primal Man is still one of the unsolved problems of religious history.
But how to explain the combination of the figure of the sun-god with that of the Primal Man is an unsolved riddle.
The final perplexity, concealed by various forms of expression, comes forward at the close of the Treatise as absolutely unsolved, and leads Hume, as will be pointed out, to a truly remarkable confession of the weakness of his own system.
These, together with independent researches into the heat treatment of steel and iron, have opened up many unsolved problems fraught with deepest interest and importance.
The loss of the department of Panama left the republic with unsettled frontiers on every side, and some of the boundary disputes still unsolved in 1909 concern immense areas of territory.
He seemed to see and hear nothing of what was going on around him and to be absorbed by some depressing and unsolved problem.
The unsolved problem that tormented him was caused by hints given by the princess, his cousin, at Moscow, concerning Dolokhov's intimacy with his wife, and by an anonymous letter he had received that morning, which in the mean jocular way common to anonymous letters said that he saw badly through his spectacles, but that his wife's connection with Dolokhov was a secret to no one but himself.