Yes, yes, he did, because just after my father was killed, he betrayed his honor, ran off with a girl.
12 seconds sound clip from the Strife for Mastery (1978) movie soundboard.
You can hear this line at 00:39:21.233 in the DVD version of the movie.
Quote context
[...]
- Your late father was careful. That doesn't sound too likely.
- You're right. My dad was always most careful, that is, with one exception.
- Who?
- His kin, especially his own sons. I mean, what father wouldn't trust his own sons?
- It was my own brother who killed him.
- But he had no reason to do it.
- Oh? But why should he want to betray you though?
- Because he wanted to be relieved of his mission. Dad refused, and so he poisoned him.
- Because he'll be at Star Cliffs by now.
[...]