I explained that Starfleet, possibly due in part to their strong disapproval of Khan's genetic experiments and cloning, has classified Khan as a hive organism. The "collective" of clones share memories, and any Khan killed is automatically replaced with another. All of the Khans therefore, in toto, constitute a single entity as far as they are concerned; and any or all of them can therefore be held legally responsible for the actions of any one Khan "unit". Finally, since individual Khans are no longer considered discrete sentient entities, they have very limited rights under Federation law. ("Discrete" is a word which has never been applied to Khan in any event anyway.) What Lothar is doing can be classified as aggravated assault, but not murder; a distinction that annoys Lothar and just makes him kill more Khans when a Khan points it out.
Thus far, however, Khan has never pressed assault charges against Lothar, and Lothar has never destroyed all of the Khans (along with their replacement mechanism) – so there is little that