<modsnip - criticizing an approved source> I think it’s clear he saw her from these words:
“Ms Bulley was reportedly
last seen by a man walking his dog in the vicinity about 9.15am. The man has spoken with police. His wife, a 57-year-old software engineer, told
The Times her husband was one of three people in the field the morning Ms Bulley disappeared.
'He said there was nothing unusual about her and she seemed completely normal,' she said.”
JMO.
For what’s it worth I still think foul play by someone known to her. But it must have happened so quickly.