who is the african american artist who was killed in the world trade
center and where can i find information about his art?

Dear gwb,

It seems that the artist you have in mind was the sculptor Michael
Richards who died as a victim of the terror attack of September 11,
2001.

On the CNN September 11 Memorial website you can see his portrait
together with some basic figures about him:
September 11 Memorial, by CNN, 2001
http://www.cnn.com/SPECIALS/2001/memorial/people/1886.html

Please follow this link to view a virtual exhibition, a biography and
an essay on Michael Richard's works by the Studio Museum in Harlem:
In Memory Of Michael Richards, by the Studio Museum in Harlem, 2001
http://www.studiomuseuminharlem.org/richards.html

Another memorial page, by the Lower Manhattan Cultural Council, can be
found here:
Michael Richards, by the LMCC, 2001
http://www.lmcc.net/MR.htm

Search terms used:
"artist died" "world trade center" "september 11":
://www.google.de/search?hl=de&ie=UTF-8&oe=UTF-8&newwindow=1&q=%22artist+died%22+%22world+trade+center%22+%22september+11%22&meta=
"lower manhattan cultural council" artist killed:
://www.google.de/search?hl=de&ie=UTF-8&oe=UTF-8&newwindow=1&q=%22lower+manhattan+cultural+council%22+artist+killed&meta=
"Michael Richards": ://www.google.de/search?q=%22Michael+Richards%22&ie=UTF-8&oe=UTF-8&hl=de&btnG=Google-Suche&meta=

Hope this is what you were looking for!
Regards,
Scriptor

thank you...perfect answer. do not need any more