As of this writing, it appears that he is. But he is 84 years old now.
No
is George Beldam, Jr. still alive
Yes, at the time of writing Harry Carey Jr. is still alive. He's 88.
John Forbes Nash Jr is still alive to this date.
Desi Arnaz Jr. is still alive.
no
no
no he is still alive
Michael Jr aka Prince is still alive.
no, AB is still alive.
Are Martin Luther King Jr's kids still alive.
No, as of December 2011, Russell Simmons Jr. is still alive.