Recieved subpoena by mail, am i required to attend? Can i reschedule?

i received a subpoena to speak on behalf of the state in a case in a crime i witnessed.

the subpoena has a court date two days from now which i won't be able to attend.

is there a way i can reschedule this or what?

i don't want to screw my life because of some deadbeat loser.

also the subpoena is from another county... if im half-way across the country or just can't get there what i can i do?

I would like to add.

I checked the dockets on the day I am scheduled to attend.

The Attendance Reason for the Joker says: Settlement.

Other person's attendance reasons are: trial, settlement, petition/motion, etc.

I assume this may mean the person pled guilty to the charges?

[annjd]

It is often not valid if not from a court in your state.

You most likely need not attend. Get a local lawyer's opinion and have him review it.