4 ms·

But how did he die in the original timeline?

• bredren 7y ago
  He held an explosive over a dead man switch and bled out.
  • tbyehl 7y ago
    That was the altered (movie) timeline.
    • Retra 7y ago
      What other timeline is there?
      • tbyehl 7y ago
        The one before people / machines went back in time to alter the past. We (or at least, I) don't know what happened to Dyson on Judgement Day the first time around.
        • Retra 7y ago
          AFAIK, there was only one timeline, it was just a closed loop. Skynet was built using technology from the first Terminator (and presumably would never had been developed otherwise.) John Conner knew to send Kyle Reese back in time because his mother told him who came back in time to be his father (and even gave him a photo taken just after the events in T1.) The events of the first few movies play out as inevitabilities.