They were killed.
1	They	they	PRON	PERS-PL-NOM	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	were	be	AUX	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	3	aux:pass	_	_
3	killed	kill	VERB	PASS	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	SpaceAfter=No
4	.	.	PUNCT	Period	_	3	punct	_	_
