Second new dead ghost found while Paradox is the Daily Heroic mission, "Mystery: The Vault of Glass 2", in the Taken King expansion/TTK for Destiny.
This can be found when you take the spirit bloom path in the Paradox mission inside the Vault of Glass. Continue down the path past the first area with lights, and you will then approach a pillar with a light in it that has a ledge you can jump on top of. Jump up here and before the next drop down, in the corner the ghost will be there.
To obtain this it seems you have to have grabbed the first one beforehand, and not die after picking it up. It also is only obtainable when Paradox is the Daily Heroic. This also leads to the No Time To Explain exotic pulse rifle / NTTE. Full guide for No Time To Explain here: https://www.youtube.com/watch?v=Va5KRSoV9Lw