to justice. Sometimes a case is not solved but forensic evidence helps to determine that the crimes are serial crimes. The BTK case and Original Night Stalker (the latter pending trial as of April 24, 2018) cases are such examples. The Texas Rangers have established a website in the hopes that it shall elicit new information and investigative leads. Tunnel vision Sometimes, a viable suspect has been overlooked or simply ignored due to then-flimsy circumstantial evidence, the presence of a likelier suspect (who is later proven to be innocent), or a tendency of investigators to zero in on someone else to the exclusion of other possibilities (which goes back to the likelier suspect angle)—known as "tunnel vision". Improvements in forensics With the advent of and improvements to DNA testing and other forensics technology, many cold cases are being re-opened and prosecuted. Police departments are opening cold case units whose job is to re-examine cold case files. DNA evidence helps in such cases but as in the case of fingerprints, it is of no value unless there is evidence on file to compare it to. Famous criminal examples The identity of Jack the Ripper is a notorious example of an outstanding cold case, with numerous suggestions as to the identity of the serial killer. Similarly, the Zodiac Killer has been studied extensively for almost 50 years, with numerous suspects discussed and debated. The perpetrators of the Wall Street bombing of 1920 have never been positively identified, though the Galleanists, a group of Italian anarchists, are widely believed to have planned the explosion. The burning of the Reichstag building in 1933 remains controversial and although Marinus van der Lubbe was tried, convicted and executed for arson, it is possible that the Reichstag fire was perpetrated by the Nazis to enhance their power and destroy democracy in Germany. Examples of criminal cold cases that ended in conviction 1940s 1950s 1960s 1970s 1980s 1990s 2000s Examples without conviction, but considered solved or likely solved 1910s 1960s 1970s 1980s 1990s 2000s Examples of unsolved criminal cold cases In popular culture Film In the movie Max Payne, Detective Max Payne works in Cold Case, NYPD Literature The phrase "Cold Case" is found in a number of story and book titles. Examples include: L.L. Bartlett (2010). "Cold Case". A Jeff Resnick Mystery. . Polaris Press. This short story inspired the fourth Jeff Resnick book, Bound by Suggestion.