https://en.m.wikipedia.org/wiki/2019_El_Paso_shooting
--happened 40 weeks (280 days) after:
https://en.m.wikipedia.org/wiki/Pittsburgh_synagogue_shooting

1. World War I got underway fully on Tuesday August 4, 1914, German solders began massacring British and French soldiers on this day:

"...Nobody foresaw the cataclysm that would befall the world the day of Aug. 4 when the conflict erupted in full force with the German invasion of Belgium and the British declaration of war. Both sides believed the war would be over by Christmas. Instead, a battlefront scar would slowly and agonizingly rip across Europe, ravage whole societies and millions of families..."

http://ww1.canada.com/after-the-war/european-powers-started-the-great-war-a-century-ago-underestimating-the-tragedies-ahead

2. World War I ended on the same day it began in the "Mayan Calendar" ultra-prophetic 260-day cycle: "13 Wind" which is the 182nd day of the 260-count, six cycles apart. "Nov. 11, 1918 — the last day of the war" was 6×260 days after Tuesday August 4, 1914.

3. World War II began and ended on the same day in the regular 365.25-day year, six years apart: September 1 in Europe when Germany invaded Poland in 1939; it was Saturday September 1 USA time zones when Japan's surrender was formalized in a ceremony aboard the USS Missouri in 1945.

4. The Columbine High School Massacre in Colorado happened on the same day as World War I began in the 260-day cycle, Hitler's 110th birthday Tuesday April 20, 1999 was exactly 85 times 364 days (85×364= 119×260) after Tuesday August 4, 1999. Capeche?

5. I only JUST NOW realized, The U.S. and British invasion of Iraq began Thursday March 20, 1999 Iraq time zone, which was 5.5 times 260 days after the Columbine Massacre and thus 124.5 times 260 days since the start of World War I.

6. El Paso Wal-Mart Massacre of Saturday August 3, 2019 (Sunday August 4 in China and Japan) took place 7410 days (28.5 times 260 days) after the Columbine Massacre April 20, 1999. The El Paso Wal-Mart Massacre began on the 52nd day of the 260-day cycle, "13 Tooth" which symbol is also a metaphor for "bullet" or "missile" or "hailstone" or "revelation from God".

7. Saturday August 3, 2019 is 147.5 times 260 days after Tuesday August 4, 1914.

8. The El Paso Texas Massacre, I apparently mourned about it 43 times 260 days before it happened, as per this excerpt:

"...As I have explained before, I had a powerful prophetic dream that morning [of Friday December 23, 1988], which is 11180 days or 43×260 days ago this morning: In the dream I told a group of people that in three (or four!) weeks something tragic would happen, and I saw blood on a street and began to mourn, I was rolling over and over through the air, crying because of what was going to happen."
https://www.rumormillnews.com/cgi-bin/forum.cgi?read=128432
"...hitting the big time, WOO!"
Posted By: FrancisDrake
Date: Saturday, 3-Aug-2019 04:25:19 AM CDT

(I also mourned over the JFK assassination in Dallas Texas in 1963, on that dream)