On the December night in 1999 that Mr. Levi walked into a Times Square nightclub, he was a 21-year-old enjoying the fruits of his first record deal and the hip-hop high life. The details of what happened inside remain muddled, but after an argument broke out between Mr. Combs, then known as Puff Daddy, and a group in the club, shots were fired, and three people were hurt.

Mr. Combs was charged with gun possession but later cleared in a highly publicized trial. Mr. Levi was sentenced to 10 years in prison for assault, gun possession and reckless endangerment. The police said he fired into the crowd. He maintains he shot in the air to break up the dispute. He would not say whether he took a fall for his former mentor.

“That’s the past, I got so much going on,” he said. “We move on.”

What Mr. Levi has moved on to since being released from prison last year is a life in which he is often up at daybreak, wrapping his arms with the leather straps of tefillin, the ritual boxes containing Torah verses worn by observant Jews for morning prayers. Throughout the day he studies with various strictly Orthodox rabbis.

“What are the laws?” he said, explaining his decision to adhere to the Orthodox level of observance. “I want to know the laws. I don’t want to know the leniencies. I never look for the leniencies because of all of the terrible things I’ve done in my life, all of the mistakes I’ve made.”