The FBI's fixation on Hatfill (at least as rumored by some reporters) may have stemmed from a warning by one Senator that careers hung in the balance.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	2:det	_
2-3	FBI's	_	_	_	_	_	_	_	_
2	FBI	FBI	PROPN	NNP	Number=Sing	4	nmod:poss	4:nmod:poss	_
3	's	's	PART	POS	_	2	case	2:case	_
4	fixation	fixation	NOUN	NN	Number=Sing	18	nsubj	18:nsubj	_
5	on	on	ADP	IN	_	6	case	6:case	_
6	Hatfill	Hatfill	PROPN	NNP	Number=Sing	4	nmod	4:nmod:on	_
7	(	(	PUNCT	-LRB-	_	11	punct	11:punct	SpaceAfter=No
8	at	at	ADP	IN	ExtPos=ADV	11	advmod	11:advmod	_
9	least	least	ADJ	JJS	Degree=Sup	8	fixed	8:fixed	_
10	as	as	SCONJ	IN	_	11	mark	11:mark	_
11	rumored	rumor	VERB	VBN	Tense=Past|VerbForm=Part	18	advcl	18:advcl:as	_
12	by	by	ADP	IN	_	14	case	14:case	_
13	some	some	DET	DT	_	14	det	14:det	_
14	reporters	reporter	NOUN	NNS	Number=Plur	11	obl	11:obl:by	SpaceAfter=No
15	)	)	PUNCT	-RRB-	_	11	punct	11:punct	_
16	may	may	AUX	MD	VerbForm=Fin	18	aux	18:aux	_
17	have	have	AUX	VB	VerbForm=Inf	18	aux	18:aux	_
18	stemmed	stem	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	_
19	from	from	ADP	IN	_	21	case	21:case	_
20	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	21:det	_
21	warning	warning	NOUN	NN	Number=Sing	18	obl	18:obl:from	_
22	by	by	ADP	IN	_	24	case	24:case	_
23	one	one	NUM	CD	NumForm=Word|NumType=Card	24	nummod	24:nummod	_
24	Senator	senator	NOUN	NN	Number=Sing	21	nmod	21:nmod:by	_
25	that	that	SCONJ	IN	_	27	mark	27:mark	_
26	careers	career	NOUN	NNS	Number=Plur	27	nsubj	27:nsubj	_
27	hung	hang	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	21	acl	21:acl:that	_
28	in	in	ADP	IN	_	30	case	30:case	_
29	the	the	DET	DT	Definite=Def|PronType=Art	30	det	30:det	_
30	balance	balance	NOUN	NN	Number=Sing	27	obl	27:obl:in	SpaceAfter=No
31	.	.	PUNCT	.	_	18	punct	18:punct	_
