Barron is this year's winner of the William E. Colby Award, a $5,000 honour given for a fiction or nonfiction book about the military, intelligence operations or foreign policy. Barron, a judge for the First Circuit Court of Appeals, was cited for "Waging War: The Clash Between Presidents and Congress, 1776 to ISIS."
Barron got the award at the end of the last year. 
According to the text, he got the award last year, so there is no way to know  if it was at the end, middle or when in last year. 
( z1 award :ARG1 ( z2 person :name ( z3 name :op "Barron" ) ) :time ( z4 end :ARG1 ( z5 year :mod ( z6 last ) ) ) )