At 9:58:57, Jarrah told another hijacker in the cockpit to block the door.
( ( At 9:58:57 ) ( , ( Jarrah ( ( ( ( told ( another hijacker ) ) ( in ( the cockpit ) ) ) ( to ( block ( the door ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (CD 9:58:57))) (, ,) (NP (NNP Jarrah)) (VP (VBD told) (NP (DT another) (NN hijacker)) (PP (IN in) (NP (DT the) (NN cockpit))) (S (VP (TO to) (VP (VB block) (NP (DT the) (NN door)))))) (. .)))
Jarrah told another highjacker to block the cockpit door. 
( Jarrah ( ( told ( another ( highjacker ( to ( block ( the ( cockpit door ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Jarrah)) (VP (VBD told) (NP (DT another) (NN highjacker) (S (VP (TO to) (VP (VB block) (NP (DT the) (NN cockpit) (NN door))))))) (. .)))