From the Las Vegas shooting of October 1, 2017, to the Gilroy Garlic Festival shooting of July 28, 2019, was a span of 666-days, the number of the beast.
This matters for a couple of reasons.
First of all, 666 is the number of the 'beast', and the latter shooting came on a date with 47 numerology, plus they said the shooter in Gilroy bought his gun in Nevada, a '47' state.
7/28/2019 = 7+28+(2+0+1+9) = 47
Read about the shooter's gun purchase in Nevada:
Next point. The food festival shooting was located at Christmas Hill Park, and the shooter was name Santino, a name synonymous with Santa, not far off from Santa Claus.
Consider, the Vegas shooting came days after Yom Kippur, the most important holy day of the Jewish calendar year, and Christmas is the most important holy day of the Christian year.
From the date of July 28, 2019 to Christmas is a span of 151-days.
151, 36th prime; 666, 36th triangular number
Consider the shooting came on a Sunday, the day of Christian worship.
It was also a date with 74 numerology. 7/28/2019 = 7+28+20+19 = 74
Bonus: Notice the overlap with 'Christmas Hill Park' and 'shooting'. 109.