Cats do sometimes gang up on another cat. Sometimes it is because they sense an illness or weakness. Have you ruled out a medical condition?
When you move, it might be best to separate Meeker and Draco(?) into separate rooms and treat it like a new cat introduction. They will need to adjust to the new space and get used to the new territory - if they're like our cats, they'll be scared of the move at first - so for each of them to get used to separate rooms first might not be a bad idea.
While they're in separate rooms, rub Meeker all over with a wash cloth or clean rag, and put treats out on it for Draco. Rub Draco all over with a wash cloth or clean rag, and leave treats out on it for Meeker. This will help them come to associate each other with good things.
If you're moving to a studio apartment, you can still use the "treat" trick.
If you can separate them, slowly introduce them in a supervised fashion. Let Draco into the room with Meeker for 15 minutes or a half hour while you're there. Keep a can with coins in it handy, and if he attacks her or something, shake the can of coins - don't intervene physically.
Once they're sharing the space together, instead of verbally discouraging Draco from being mean to Meeker, praise him out loud when he leaves her alone or is nice to her. If Meeker likes to play or likes pets, whenever Draco comes into a room where you are with Meeker, pet her or play with her. The idea, if possible, is to make it seem like good things happen to her when Draco is around.
Treat your kitties as they are - emotional, sensitive, intelligent creatures. Talk out loud to them, and explain to Draco that he should take his aggression out on his toys. Give both of them "alone time" play - 10 or 15 minutes a day (at least).
Spending his energy on play may help. Sometimes cats are aggressive to each other out of sheer boredom. They need stimulation, and it is up to us to help them get it.
Change the toys that are out every few days. Add a new toy every week or so. Put boxes out for them to play in - leave them out for a few days. Then switch to paper bags for a few days. Change the placement of the bags and boxes.
Vertical space is also really important to cats. The dominant cat (usually) likes to sit in higher places. Make sure you've got bookshelves he can jump on safely - or consider purchasing a cat tree if you can afford it. Try buying a couple of cat tents for Meeker to hide in if Draco goes after her (if it's just one kitty she may retreat).
Hope some of these ideas help.
Scritches to Meeker -