bombastic:おおげさ

 「Defending Jacob｣ﾖﾘ

Judges were ostensibly assigned to trials at random.
osstensibly:表向き

He was never bombastic;
bombastic:おおげさ

Jonathan sat besides us, unfazed by the delay.
unfazed 【形】恐れない、臆しない、平然とした

Poised on that bench,my wife looked very pale and thin among the specators,
poised: 〔…に〕軽く座って 〔in，on〕.
She was poised on a chair. 彼女はいすに軽く腰をかけていた.

Even worse, now we had the gall to spport the killer;
gall:厚かましさ

Andrew Barber would like to enter an apperance in the case on the defendan's behalf.
enter an appearance：顔を出す［のぞかせる］、顔出しする、現れる、登場する、お目見えする、姿を現す、出現する
【表現パターン】make ［enter］ an appearance

Jonathan and I conferred on each potential juror.
confer:自動詞 on, 打合せする

He is hair was perpetually mussed.

mussed 

muss:〈髪の毛・服などを〉くしゃくしゃにする，めちゃめちゃにする 〈up〉.