But it may be the only defense, however partial it may be, that Kaczynski's attorneys have. FBI agents uncovered a trove of evidence in his Montana cabin, including virtual signed confessions and a signature completed bomb.
1 Whenever the Moon, Earth and Sun are aligned, the gravitational pull of the sun adds to that of the moon causing maximum tides.  Spring tides happen when the sun and moon are on the same side of the earth (New Moon) or when the sun and moon are on opposite sides of the earth (Full Moon).
There are several effects that modify the lunar powered tides. 1  The moon's distance from the Earth varies because it is not in a perfectly circular orbit. 2  The shape of the coastline, inlets and blocking land masses or deep ocean basins all change the speed and max/min heights of the tides for any given location.