when and where did martin luther king died?

Answer 1

On the evening of April 4, 1968, while standing on the balcony of his motel room in Memphis, Tennessee, where he was to lead a protest march in sympathy with striking garbage workers of that city, he was assassinated.
http://nobelprize.org/nobel_prizes/peace/laureates/1964/king-bio.html
s

Answer 2

Nice of you to do something on such a day!

In a sentence, Martin Luther King was assassinated at 6:01 p.m. April 4, 1968, on the balcony of the Lorraine Motel in Memphis, Tennessee.

Why don't you read this piece of a wikipedia article?
http://en.wikipedia.org/wiki/Martin_luther_king#Assassination

good luck! 8-)