Torben Merriott
I had a brief correspondence with Torben Merriott. He wrote that he did not spot the helicopters (I assume he means he didn't see them lit up, indicating a fast flash instead of holding the light steady). He also said the pilot reported that the light came from the right rear; it lit up the cockpit but did not go directly (head-on) into his night-vision goggles. If I understand press reports, only one of the two helicopters was illuminated.
Torben stated the illuminated helicopter was very close to his house, that it climbed from 10 ft to 600 ft.
Hope this clarifies questions about tail numbers etc. Maybe it raises more questions (10 ft sounds awfully low) but that's what Torben said and that's the only info I have at this time from him.