My homocidal players. My game. My nightmare, I need advice from all you other GM's Options

[ryanstone]

Hello all,
So I'm about at my wits end with my game and with Shadowrun in general. I could really use some advice on how to handle a situation that arose during my game with weekend.

First, the situation: The party kidnapped a hacker from a bar. In front of a dozen other hackers who ran rampant in the players completely open Comlinks. They then proceeded to murder the woman they kidnaped after she spilled the beans. They then left an NPC to deal with the van and body while they all grabbed grid cabs using their SINs and comlinks to go to another location. They got into another gun fight at the second location and this is where we ended the game.
Here is a big part of my quandry: This is not their first time being wanted for murder.
On their first mission they were supposed to destroy a facility with explosives. However, the Johnson made it clear that the guards did not have to be killed and he would be happier if they weren't. Of course the playes go in with guns blazing and kill all but one of the guards who was sniping them. The security cameras were never disabled and the hacker was brought down so they were not able to erase the camera data. Thus, the run and the slaughter of the guards was on the news as were the character faces. Since it was their first mission I went easy on them and had them lay low for a while and their contacts cut off communication with them for several months while the het died down.

So the players are already wanted for murder from teh first run, then they go and pull something like this. What the heck should I do?

Here is what I think should honestly happen: The hackers at the bar would have called Lonestar as soon as she was kidnapped. Also, they spend a min or two interrogating the hacker they kidnapped, which gave her time to call Lonestar herself in AR, and also hack the vans RFID to broadcast her location to Lonestar. The team does not have a hacker and thus, was not able to intercept her transmissions. So Lonestar is all over the kidnapping and murder within an hour or so. I'm sure they can access gridcab records and track their cab pickup and dropoff location due to all of the users SIN's being given to the police by the hackers who were nosing through their open comlinks.
The players also plan on picking up another cab to leave their current location. I'm sure their SIN's are flagged and Lonestar will be notified as soon as they get into the cab and pay for it with their Comlinks. Lonestar can then get a Tactical team together and set up an ambush site. Lonestar reroutes the cab and tells it to travel to the ambush site and shut down once it gets there, thus, delivering the players right into Lonestar's arms. The characters get tried and convicted and the players roll up new characters. Is this too harsh? Should I give them another chance?
I could go easy on them and have them dogged by Lonestar and runners hired to take them out by friends of the woman they killed, but something is telling me that the players need to be taught a lesson.

Sorry for the really long post, but I'm in a pickle here.