The would-be killers, who came from the Egyptian Islamic Group, had been sheltered in Sudan and helped by Bin Ladin.
( ( ( ( ( The ( would-be killers ) ) , ) ( who ( came ( from ( the ( Egyptian ( Islamic Group ) ) ) ) ) ) ) , ) ( ( had ( been ( ( ( sheltered ( in Sudan ) ) and ) ( helped ( by ( Bin Ladin ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ would-be) (NNS killers)) (, ,) (SBAR (WHNP (WP who)) (S (VP (VBD came) (PP (IN from) (NP (DT the) (JJ Egyptian) (NNP Islamic) (NNP Group)))))) (, ,)) (VP (VBD had) (VP (VBN been) (VP (VP (VBN sheltered) (PP (IN in) (NP (NNP Sudan)))) (CC and) (VP (VBN helped) (PP (IN by) (NP (NNP Bin) (NNP Ladin))))))) (. .)))
Bin Ladin helped the people that were planning to kill.
( ( Bin Ladin ) ( ( helped ( ( the people ) ( that ( were ( planning ( to kill ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Bin) (NNP Ladin)) (VP (VBD helped) (NP (NP (DT the) (NNS people)) (SBAR (WHNP (WDT that)) (S (VP (VBD were) (VP (VBG planning) (S (VP (TO to) (VP (VB kill)))))))))) (. .)))