cloud of smoke. it was so big and so loud. it shook my car when i was driving. i heard something that hit the top of my car and i hopp eped o and took a picture. reporter: you must be thinking to yourself, i went through this on monday. yes. is it another terrorist attack? was it a bomb? it was so massive. in 43 years have you ever been near a bombing before? no. and it happened twice in three days. yes. i said you ll never believe this but i ve seen another explosion and started to describe it to her. her first reaction was get home as quick as you can. reporter: that joe did, returning home to a wife and children who want him to stick around for a while.