On Monday April 15, 2019 I took a photo with my mobile phone at exactly 18:46.

Monday 18:46, April 15, 2019, Notre Dame Cathedral as seen from Rue Lagrange, Paris France

Five minutes later I witnessed the disaster first hand. I saw the roof cave in, I heard the spire fall and the crowd gasp in shock. The heat from the fire tornado was so immense that I felt it on my cheeks all the way up the river Seine.