A shocking new video captured the gut-wrenching moment an accused drunk driver slammed into a Long Island nail salon, killing an off-duty NYPD cop and three others — while injuring nine others.

The minivan allegedly driven by accused drunk driver Steven Schwally barrels over a curb, briefly going airborne before it slams at full speed into Hawaii Nail & Spa in Deer Park on June 28, footage posted on Instagram by the account ppv_tahoe on Wednesday shows.

The crash killed off-duty NYPD cop Emilia Rennhack, 31, who was having her nails done for a wedding later in the day, and three others — Jiancai Chen, 37; Yan Xu, 41; and Meizi Zhang, 40.

A 12-year-old girl was among those injured in the drunken crash, police said.

Schwally was arraigned on driving while intoxicated charges on July 1 in Suffolk County court — with Rennhack’s newlywed husband, NYPD Det. Carl Rennhack, looking on.

Prosecutors said Schwally admitted to police that he downed 18 beers in the hours prior to the fatal crash and is being held on $1 million bail pending a return court appearance on July 19.