I assume you've played the whole first season? I'll use spoilers after the first one, in case you haven't. Stephanie Marla hit's Vic. Maja thinks someone tried to kill Vic at first, but it's a clear accident. In chapter 4.5 at the sleepover at VIc's we find out Melanie Ceril threatened Vic in a way that was life threatening, so Maja has been worried about that. Also knowing that Melanie's sister is the police officer in Ch5, we get the picture that Melanie's sister will probably pull strings to get Melanie off the hook if anything did happen. Currently it's more a case of Maja's paranoia than anyone actually trying to kill her. Marla wasn't, it was an accident.