A 72-year-old man who insisted he “did nothing wrong” when he fatally struck former Nickelodeon star Kianna Underwood as she crossed a Brooklyn street at the start of the year has been arrested for the alleged hit-and-run death several months later.
Michael Griffiths was cuffed Tuesday and charged with leaving the scene of an accident resulting in death and leaving the scene of an accident with injury, the NYPD said.
Griffiths’ arrest comes eight months after Underwood, 33, was plowed down by two vehicles in Brownsville around 6:50 a.m. on Jan. 16.
Surveillance footage obtained by The Post showed Underwood crossing against the light at Watkins Street and Pitkin Avenue when a Ford SUV crossed the double yellow line into the opposite lane to pass a stopped car ahead…