I'm flagging Patriots Day 4/19

For either a mass shooting or an attack on a mosque....

I'm flagging 4/19 because it's 888 days after the 1st Scottish Rite Day. The masons created the first ever Scottish Rite Day on 11/12/2016.
Sat, 12 November 2016 = 11th of Cheshvan, 5777
י״א בְּחֶשְׁוָן תשע״ז
Parashat Lech-Lecha (in Diaspora)
"11th of Cheshvan, 5777" = 223 (Reverse Ordinal)
"Skull And Cross Bones" = 223 (English Ordinal)

From and including: Saturday, November 12, 2016
To, but not including Friday, April 19, 2019
Result: 888 days
"Patriots Day" = 888 (English Sumerian)
"Donald J Trump" = 888 (English Sumerian)

Patriots Day 4/19 is also a Jewish holiday Pesach starts at sunset the 14th of Nisan.
Nisan is the first month of the ecclesiastical year so it's the 14th day of the year. It is 14/1 date format and 811 is the 141st prime number. The number 14 being the lowest common demonitor in mass shootings because of....

Valentine in Hebrew
"אָהוּב" = 14 (Hebrew Reduction)
"אָהוּב" = 14 (Hebrew Ordinal)
"אָהוּב" = 14 (Hebrew Gematria)
"אָהוּב" = 14 (Hebrew Soffits)
Tisha B'Av in Hebrew
ט׳ באב" = 14 (Hebrew Reduction)
ט׳ באב" = 14 (Hebrew Ordinal)
ט׳ באב" = 14 (Hebrew Gematria)
ט׳ באב" = 14 (Hebrew Soffits)
David in Hebrew
דוד" = 14 (Hebrew Reduction)
דוד" = 14 (Hebrew Ordinal)
דוד" = 14 (Hebrew Gematria)
דוד" = 14 (Hebrew Soffits)
Gunman in Hebrew
"אקדח" = 14 (Hebrew Reduction)
Chaos
"אִי סֶדֵר" = 14 (Hebrew Reduction)

The first Scottish Rite day was founded on Saturday 12 November...
Sat, 12 November 2016 = 11th of Cheshvan, 5777
Parashat Lech-Lecha (in Diaspora)
Cheshvan is the 8th month on the ecclesiastical calendar.. So the date is 11/8/5777
118 = 811
It's also the 3rd week of the Torah portion readings.
"Parashat Lech-Lecha" = 141 (English Ordinal)
811 is the 141st prime number

From Scottish Rite day to 8/11 is 33 months...
From and including: Saturday, November 12, 2016
To and including: Sunday, August 11, 2019
33 months

You know after the shooting in NZ I'm beginning to wonder if they're going to blame the 8/11 Temple Mount mosque bombings on white supremacists. It's the 223rd day of the year..
"white supremacist" = 223 (Reverse Ordinal)

They could blame it on a "white supremacist Christian cult" trying to get the 3rd temple built so Jesus will come back. It isn't that far of a leap to go from shootings mosques to blowing them up.

Remember the "unite the right" rally happened on 8/11/2017 ...
So 8/11 could be called "white supremacist day"
"August eleventh white supremacist day" = 419 (English Ordinal)
"Patriots Day" = 888 (English Sumerian)
"Donald J Trump" = 888 (English Sumerian)
"Nebuchadnezzar" = 888 (English Sumerian)

From Scottish Rite day founding to Patriots Day 2019 is 88 weeks..
From and including: Friday, August 11, 2017
To, but not including Friday, April 19, 2019
88 weeks
Result: 616 days
"Seal of Solomon" = 616 (Satanic)