After an exhaustive and arduous mathematical work, and I got this amazing result …

dates of the crimes and signs

Initial letters of the signs and number corresponding to the order.

December 20, 1968 C apricorn
July 4, 1969 C ancer
September 27, 1969 L ibra
October 11, 1969 L ibra

L ibra
L ibra
C ancer
C apricorn

L = 12
L = 12
C = 3
C= 3

12= 12
3+3+12= 18
3= 3
3= 3

so…121833
using my "technique", I concluded that on March 4, 2017 the 340 will finally be deciphered because:

340 = 20X17 or 2017
340 = 3 4 0

so…. 3 / 4 / 2017

It’s The End Of The World As We Know It (and I Feel Fine)

Marcelo