So I'm a complete novice and I have spent the last four hours looking around for a solution to my problem on the internet, but I can't find one. I've just complete a dual boot of windows 8 and Kali Linux on my Alienware 14. The process went smoothly up until the point where it asked for an Ethernet driver. I couldn't find my driver on the list so I selected no Ethernet driver. I also selected no for the Configure network mirrors. Now that Linux is installed and booting properly, I'm not able to get any kind of connection be it wired or wireless. Can anyone help me?

Broadcom 802.11ac Network Adapter
Killer e2200 Gigabit Ethernet Controller (NDIS 6.30)