I saw that these are the charges. There is a DUI on there which is good and he admitted to having 5-6 beers before the incident. I also read this and it seems like he could potentially get up to 30 years (per charge? I am not a lawyer).
"In New Jersey, the severity of your penalties for vehicular manslaughter will vary depending on whether there are aggravating factors. Generally, it is charged as a second-degree indictable crime with a sentence of 5 to 10 years of prison time and up to a $15,000 fine. In most cases, prison sentences must be served without parole, serving three years of special parole after release.
In cases involving driving while under the influence (DUI), the court must impose a minimum prison sentence and a driver’s license suspension of five years to life. Additionally, you will face vehicle forfeiture, meaning the vehicles involved in committing the offense will be seized. If it is deemed as a first-degree offense, you can face between 10-30 years of imprisonment, which must be served without parole, requiring five years of special parole after being released, and a fine of up to $20,000."