Young and ambitious, with the periodic founded by him, he followed with particular attention crime beat, the mafia phenomenon and its ramifications in the territories of Termini Imerese and Caccamo.
In fact he was found first of all dead on the tracks of the railways inside the tunnel Fossola near Termini Imerese, and this led the investigators to think it had been a suicide.
His family was the first to raise the issue and to point out some particulars, then his colleagues that worked for L'Ora of Palermo, and also the brave journalist Mario Francese (also a victim of the mafia), but only 6 years later this case was reopened.
In 1999 the journalist Luciano Mirone from Catania dug up the case and he found out that the deputy commissioner of Palermo Angelo Mangano in 1966, famous for a photo known all over the world while he handcuffed the boss of Corleone Luciano Liggio, reopened the inquiry and wrote an explosive report that was neutralized by the result of the postmortem.
On 5 May 2010, Termini's associations, solicited under the local newspaper "Espero", deposed a tombstone out of the tunnel "Fossola", where was found the body of Cosimo Cristina.