Eilish Meehan was testifying at an inquest into shootings in Belfast's Ballymurphy area in 1971.
The taoiseach says that while assurances could be given, the backstop is not up for negotiation.
A man was arrested at the scene on suspicion of dangerous driving.
Christmas has come early for headline writers as the PM's narrow escape serves up festive puns.
Amnesty for Troubles killings is "political conundrum"
A look ahead to the weather over the next 24 hours
Buyers, breeders and trainers share their Brexit fears.
Senior Conservatives annoyed at Ireland's "outsized role"
Theresa May's diplomatic activity is eating up time
The scheme that's helping lonely older people
Team news as Ulster host Scarlets in Friday's European Rugby Champions Cup fixture at Kingspan Stadium (19:45 GMT).
15 sayings from around the world