Prophecies concerning the 2 prophets that will be murdered at Jerusalem. I need the scriptural reference.

I'm looking for the quote on the 2 prophets that "were to be killed at Jerusalem". Not sure where it came from. I've looked in Topical guide, but find no reference.

You're thinking of the "two witnesses" in Revelation 11:
https://www.churchofjesuschrist.org/stu ... 1?lang=eng

Here's a section in a New Testament institute student manual that talks about the two witnesses briefly:
https://www.churchofjesuschrist.org/stu ... ng=eng#p54

See also Doctrine and Covenants 77:15:
https://www.churchofjesuschrist.org/stu ... ng=eng#p15

You can find an overview from a general Christian perspective here:
https://en.wikipedia.org/wiki/Two_witnesses

There's a lot of speculation, but not a lot of detail in revealed scripture or teachings of latter-day prophets, so there's not much that can be said authoritatively as to their meaning or identity.

Here is the link about this topic:
The Battle of Armageddon: A Prophetic View

https://www.churchofjesuschrist.org/stu ... i?lang=eng