calories in vs. out // Insulin

I have a question that's been in my head for a couple of weeks, and since the food section here is down and I can't log currently, I thought I'd give it a go. Give me your thoughts, this is purely out of nerdy curiousity...

statement 1: You need to eat an excess of 3500 calories above your calorie needs to gain 1 lbs of fat.

vs.

statement 2: when you eat refined sugar as in soda's, candy, ... or other carbohydrates by themselves, the sugar enters the bloodstream all at once, sending your blood sugar level soaring. This sets off an alarm and the pancreas secretes insulin into the bloodstream to take some of the sugar out. The Insulin used is afterwards stored as fat.

So how do these two things add up? are they both true? I personally always believed more in the first part,, calories is vs. calories out.