Mohammed the last prophet?

In my recent visit with a Muslim believer from Jordan, he explained that he belileved Jesus was a prophet and that Mohammed was the last prophet. When I asked whether we needed prophets today, he said no, becaus Mohammed was the prophet for all people and for all time.
However, it has been pointed out that if one who lived in Noah's day satisfied himself he knew the law and the prophets before and therefore had no need to listen to Noah, that would not have saved him from the flood.
Similarly we must cope with floods of Satan's insidious attacks by way of drugs, pornography, abortion, and denigration of marriage, etc. Without the warning voice of a prophet we risk being overcome by the flood as were the people who would not listen to Noah.
You can have the very present comfort and guidance of the prophets of the living God by the simple flick of your remote today, on KSL Channel 5 at 10 am and 2 pm