Walt: I watched Jane die.
Jane Margolis was Jesse’s first love of the show. They had plans to run off to New Zealand together with Jesse’s money, but before they could they decided to get high one last time.
While they slept Walt rushed into Jesse’s house in an attempt to reconcile with him. This was when Jane started to overdose on heroine and throw up and because she was lying on her back she started to choke on her own vomit. Walt watched as she died, thinking her death would set Jesse down the right path.
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