Kevin Roper, the Wal-Mart truck driver who authorities say was responsible for the deadly accident on the New Jersey Turnpike Saturday that killed one man, and severely injured comedian Tracy Morgan, is slated to appear in a New Jersey state Superior Court Wednesday, where he's charged with one count of death by auto and four counts of assault by auto.

Roper, according to a criminal complaint, was awake more than 24 hours prior to the pile-up, which killed 62-year-old comedian James "Jimmy Mack" McNair, left Morgan, 45, with injuries to his femur, nose and ribs, and left two other men injured.

The actor remained in stable condition Tuesday.

On Tuesday, officials released a series of 911 calls taken following the crash; in one except, a woman is heard saying, "It's a terrible accident . . . the car flipped, it's on its side, it¹s two vehicles and a Wal-Mart truck."

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