Rest in Peace sir, I didn't know you personally but I know people who did.
http://www.nj.com/bergen/index.ssf/2017/05/one_of_the_pilots_killed_when_a_learjet_crashed_about_a_quarter-mile_from_teterboro_airport_is_believed_to_have_been_a_union_native_who_attended_the_townships_high_school.html
Sad. RIP
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Sad news.
It sounds like from listening to the ATC recording that the winds were 360/18G32. This most likely was the result of a performance loss wind shear where the plane experienced an abrupt loss of airspeed. If it was flying in a 32 knot head wind that abruptly dropped to 18 knots the plane experiences the equivalent of a 14 knot loss of airspeed. At altitude the wind swings could be worse. With a plane like a Lear that's probably right into a full stall, which is probably why one of its wings dipped. This is why its always important to add a gust factor on approach in these conditions and never get slow always be ready to rapidly put in the power. Its an unfortunate mishap.