I'm currently split-screen dual boxing with two pallies. When my main (focus) dies, I am unable to use any of my offensive spells which key off target=focustarget. For example I use the following macro for Hammer of Justice:

/cast [target=focustarget][nodead,harm] Hammer of Justice

This macro works fine when my main is alive and has a target. However, once my main (focus) dies, the macro on my second toon fails because it has no 'focustarget'

What is the workaround for this?

I apologize if this has been posted before. I tried searching for 'macro fails after death' but wasn't able to come up with much. I'll keep searching so if a useful link can be provided I would be very grateful. Thanks in advance!