A PC (character A) in our game used Drunken Monkey on an enemy (character B). It hit and did the following:

Hit: 1d8 + Dexterity modifier damage, and you slide the target 1 square. The target then makes a melee basic attack as a free action against one enemy of your choice. The target gains a bonus to the attack roll equal to your Wisdom modifier.

The damage is enough to reduce the B's health below 0.

B is an orc and has the power Savage Demise:

Immediate Reaction

Trigger: You drop to 0 hit points.

Effect: (Free Action) You take a standard action.

It used this to attack A who killed it.

Does B still make a melee basic attack against another enemy of A's choice as per the description of Drunken Monkey?

As a bonus, does the B's action before death occur before or after the slide?