I know this is contentious, however, it was mentioned recently. The possibility of suicide, we generally only have the picture of Suzy Lamplugh that her mother has painted.
Yes I know the river Thames was searched at the time. But, in the Nicola Bully case that was completed by both the police & a so called specialists team. In both cases they initially found nothing.
Since 1986 we’ve come a long way with regard to our search techniques, so it’s conceivable that back in 86 Suzy was missed during the search.
Because Suzy was a very private individual we have absolutely no idea what her mental state was at the time.
It’s possible we’re all looking for a perpetrator that just doesn’t exist.