By Enda McClafferty
BBC News NI governmental editor
SDLP person Colum Eastwood has said helium has received decease threats aft naming a erstwhile worker facing execution charges implicit his actions connected Bloody Sunday.
The Foyle MP utilized parliamentary privilege to place Soldier F during a House of Commons debate this week.
He said helium had since received deaths threats online and via email.
Police said they had received a ailment "that threatening and violative comments had been made online" connected Thursday.
They added that inquiries into the substance are ongoing.
The SDLP person said the the constabulary were treating the threats seriously, but helium added helium would not beryllium deterred from lasting up for the Bloody Sunday families.
"It is not nice, peculiarly erstwhile you person a family," helium said.
"I did what I thought was close connected behalf of the Bloody Sunday families. Those radical person faced a full batch worse than decease threats."
He said those liable tin "expect a sound connected the door" from police.
The Foyle MP named Soldier F during a statement successful the House of Commons connected the Armed Forces Bill connected Tuesday afternoon.
The talker of the House of Commons Sir Lindsay Hoyle has since said Mr Eastwood "broke nary rules".
Soldier F is facing 2 execution charges implicit the killings of William McKinney and James Wray and 5 attempted execution charges for his actions connected Bloody Sunday successful 1972 erstwhile 13 radical were changeable dormant by paratroopers.
He was granted anonymity aft the justice proceeding the lawsuit concluded "a existent hazard does exist" to the beingness of Soldier F and helium is close to "feel genuine fear".
But the Public Prosecution Service (PPS) said it planned to retreat the charges aft reviewing the lawsuit and decided statements were nary longer admissible evidence.
The lawsuit was owed to beryllium formally dismissed successful tribunal past week, but a ineligible situation by a member of William McKinney forced an adjournment.
Leave has been granted for a judicial reappraisal into the PPS's determination not to proceed with the prosecution.
The lawsuit is owed to beryllium heard successful September.