This episode appears to be based on two separate incidents:
The 2005 Interceptor body armor package scandal.
The 2006 David H Brooks case. Brooks looted his body Armour company, DHB and spent $10 million on a bat mitzvah for his daughter where 50 Cent and Aerosmith performed for it.
In the scene where Jack McCoy says "rich people can get away with murder" he's referring to Patricia Hearst the woman who was kidnapped and an accomplice in the shooting of a bank customer