let's hope he had time to repent.
Not trying to be condescending, but no, we dont "accept" Jesus, we receive Him as Lord and Savior. The word "accept" is not found in Scripture. Not trying to be snarky, but the premise that we "accept" Him as Lord is a lie that [they] have propagated. He is already Lord and Savior; it's a matter of whether we repent and bow down to His Lordship. I know that sounds like useless semantics, accept vs receive, but it has to do with the attitude of our heart.
I truly hope Kobe had time to repent and ask God to save his soul, if he had not already. We never know when the day will be our last.