Could be a descendant or something. Maybe the people she "killed" were actually sick and dieing or something.The "fake" Irisa said she is protecting the people who get killed. Seems like some sort of nanite tech. Her flashback to the distant past also kind of questions as to what Irisa really is...some sort of clone?
I'm hoping they will give it a chance. It seems like they don't give shows with bumpy starts a chance these days. A lot of stuff that turned out well had bumpy first seasons like Babylon 5, TNG etc.Yeah I'm worried it won't get another season since this one is actually fairly interesting. But really they have noone to blame but themselves. Hopefully they'll shrug it off to freshman season blues (even Babylon 5 had an difficult first season).