A man was arrested and charged nearly one year after a fatal car crash killed a real estate agent in Brooklyn, the NYPD said on Monday.

Justin Guillaume, 20, was arrested for a slew of charges—including manslaughter—after fatally hitting 63-year-old Carnasie resident Patricia Lancaster in March.

Lancaster was driving southbound on East 56th Street about 4:20 p.m. March 30th, when Guillaume hit her while he was driving eastbound on Avenue J. Lancaster suffered torso injuries and was pronounced dead at Mount Sinai Brooklyn Hospital.

Guillaume, 19 at the time, remained at the scene.

The NYPD said Guillaume, also of Brooklyn, was arrested on Friday.

He was charged with manslaughter, criminally negligent homicide, reckless endangerment and driving, not stopping at a stop sign or red light, and three counts of speeding, according to an NYPD release.

Lancaster's daughter told the Daily News last year the Brooklyn real estate agent "was always moving and grooving."

"She was involved with the condo association where she lived, she did salsa events," Tamara Lancaster told the News. "She was a caregiver for my grandmother, who has dementia."

Lancaster was among 220 total fatalities in crashes in 2019; among those were 44 motorists, 123 pedestrians and 29 cyclists.

The charges against Guillaume come after a deadly start to 2020. In Queens, a city garbage truck fatally struck a 10-year-old while he was walking to school with his mom; the same day, a cement truck driver hit a pedestrian in Brooklyn. A private sanitation truck driver killed a Brooklyn pedestrian this month as well.