No,the two witnesses are only men who can be killed and their dead corpses litter the street.The two witness are the Word of God- the Old and New Testament. I'll provide scripture study a little later as I am short for time.
I have scripture for that without jumping all over the bible.Its all.in the context.
Revelation 11
7 And when they shall have finished their testimony, the beast that ascendeth out of the bottomless pit shall make war against them, and shall overcome them, and kill them.
8 And their dead bodies shall lie in the street of the great city, which spiritually is called Sodom and Egypt, where also our Lord was crucified.
9 And they of the people and kindreds and tongues and nations shall see their dead bodies three days and an half, and shall not suffer their dead bodies to be put in graves.
10 And they that dwell upon the earth shall rejoice over them, and make merry, and shall send gifts one to another; because these two prophets tormented them that dwelt on the earth.
Don't worship them and make them more than they are.