From the accident report:
Night instrument meteorological conditions prevailed and no flight plan was filed for the planned flight to Shands Cair Heliport (63FL), Gainesville, Florida.
I note that Gainesville Regional airport lies 7 road miles/ 16 minutes drive away from the intended destination, according to Google Earth. Gainesville Airport is advertised as open 24/24 and appears to have an ILS on runway 11. The surface wind was easterly at 5 kts.
This flight appears to have been planned and attempted under "Night VFR" with a local 400 foot cloudbase. The sole crew member was apparently a highly experienced, 68 year old chief helicopter pilot.