Is it possible that the tares are the evil progenic offspring of the fallen angels (the sons of God), who left their heavenly domain and cohabitated with the daughters of men?. A hybrid race of beings called the Nephilim (giants) resulted.
The bible is very sparse regarding this event. The only references to the Nephilim are found in Gen. 6:4 and Num. 13:33. There is a non bible source that deals profoundly with Gen. 6:4. It is called the Book of Enoch and I must say that not many christians have read it or even know about it for that matter. You can go online and punch in "Nephilim, Anakim, Rephaim" and a whole new world of mystery will open to you. I cannot be dogmatic, but is it possible that when "God took him" (Gen. 5:24) that Enoch was given the amazing revelations found in the book.
The tares? Research what I have suggested and decide for yourself.