<div>Fact: murderers and serial killers do not always get caught. Behind every headline of a newsworthy conviction lie other cases of vicious murderers who got away, and who remain somewhere among us — there are an estimated 1000 killers on the loose in the United States alone. Here in one giant volume are more than 50 of the most serious serial killings and other murder cases that continue to remain unsolved, including Argentina's crazed highway killer, The Green River Killer, South Africa's 'Phoenix Strangler', The Twin Cities Killer, Costa Rica's elusive 'El Psicópata' (The Psychopath), and 'The Monster of Florence.'<br> <br>In each case it is not just the crimes that are horrifying and fascinating, but the response of local police and authorities to the lack of a conviction. Local authorities may fear to admit the continued existence of a serial killer at large; while police bodies face the temptation to close unsolved murders under the aegis of other admitted crimes. This collection will make you think again about the protection afforded by our policing system.</div>