he came to mistreat or to kill someone (see Molina); this is a full sentence in the third person singular
Alonso de Molina:
temictico. vino a maltratar o a matar a otro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 98r. col. 1. Thanks to Joe Campbell for providing the transcription.