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).
Effects on the tides. Tides are periodic short-term changes in the height of the surface at a particular place caused by a combination of the gravitational force of the moon, sun and the motion of the earth. The ocean responds simultaneously to inertia and to the gravitational forces of both the sun and the moon.