The cat involved was my cat and I have a bit more information.
 
The attack happened as described on Monday 10/22 morning at about 2:30a.  There were two dogs involved based on a neighbor's memory of the barking.
 
Since then, I've been noticing a large Husky, estimating 70+ pounds, wandering around the neighborhood [see for a fuzzy pic  http://onedomain.com/don/temp/husky.jpg ].  
 
This morning 10/25/07 at 6a, I found this dog with a smaller companion looking over my porch where the attack occurred.   At about 7:30, the dog was back again in the same area.  This time I noticed he had a distinct limp as I scared him away.  Then I noticed him going from porch to porch on Park Ave at about 8a.  I followed him down Rock View as he visited porches and unattended yards.  He briefly fought with two smaller dogs in a pen on the way.  
 
This Husky has a collar and seems possibly friendly.  He's possbly injured and appears to be on a constant hunt for food.  I feel he is probably the animal that killed my cat and may be an abandoned animal on the hunt for food.  He has no fear of coming onto porches and I would think that ALL small dogs and any size cats are at risk from this particular animal.  I've called Hoover Animal control about this.
 

More info:  The animals in question that killed my cat this past Monday were most certainly two Huskies roaming the Park Ave area.  They keep coming to my house - four times yesterday and once so far today.  I got within 10 feet of them last night and got a good look at them.
 
From what I can tell, there is an older large male who weighs about 70 lbs.  He seems injured on his face and walks/runs with a limp.  At least with me, he's never too concerned about my presence unless I get within 10 feet.  At this point, he starts snorting, growling and even barking.  Even so, he still cowers when confronted.  He seems to have litte fear of people as my wife walked out on the porch last night and was spooked by him and his partner last night.  He has an old nice leather collar, but it seems old.  He also has a tag.
 
The other Husky seems younger, is smaller and weighs about 40 lbs.  He seems more friendly, but very protective of his mate if cornered.  I almost leashed him last night.
 
Last night following these dogs, they seemed to find a home base around 527/531 Park Terrace.  At least that's where they ended up last night.  
 
I no longer think coyotes were involved in my case.  However, who needs coyotes when a normal dog like a Husky could turn out to be so vicious.

Quote from bpresident on 10/27/07 at 8:38am:

 
I'm donjuandomain's Mom...I feel sure he has called Animal Control now that he knows the dog's timing and habits and probable address since he called them to report the attack before he knew whether it was a coyote or dog(s).  Rest assured, he will not let this matter drop!  He has other pets, and so do I, so we are a pet-loving family.

My son has not seen the two Huskies around his house the past two days...ever since he posted the picture of one, their description, and the address where they probably live...and he has been on the watch for them.
 
Either the dog owner is now aware that Animal Control is on the lookout for the dogs and is keeping them penned in or they have been picked up by Animal Control.  Of course, there is also the possibility that the dogs may have decided to move on to other areas to look for food and small animals.

People are talking about pumpkins while this is happening?  Please Recap, donjaundomain (maybe i got that right), hookemhorns, let us know of any developments.  I plan to call Hoover Animal Control tomorrow, but I haven't lost a pet, so I don't think it will mean much.  This is not an acceptable situation.  Please make sure they know the circumstances of your losses, and that this dangerous animal is still at large.

Two huskies, one large and one small, are on Brookline Dr right now.  There is another husky who lives there, but these two sound like the ones we are looking for.  I called animal control and left a message.

You are right, I'm sorry about that.

I do feel sorry for the owner of the two Huskys, because I know they may be required to give up their dogs. We all know how it feels to have a loved pet taken away too soon, but I just spoke to Animal Control myself, and they say that someone is being sent to search for these two dogs. They also informed me of several calls from this area regarding the Huskys, so I and I'm sure everyone who has also lost a furry child, would like to thank everyone for helping out and taking matters into their own hand by calling and letting them know this is a serious issue! I know the dogs haven't been caught yet, but I'm sure 'Tritan' and 'Moe' would be purrfectly pleased to know that their neighbors are doing what they can to prevent anymore tragic losses of their furry friends. I just learned of this site yesterday from my neighbor and am pleased to know that the Bluff Park community can come together and help their neighbors...Thanks again to everyone!