The same Telegraph article states the following....
The last person to see Ms Bulley before she went missing said she had seemed “completely normal”. The man, who has spoken to police, saw her as she began her walk at 9.15am
His wife said they would see her on the same stretch of the river most days while they exercised their dogs, telling The Times: “In the field there were about three people, including my husband. He said there was nothing unusual about her and she seemed completely normal.”
A few things jump out about the Telegraph article
1. NB started her walk at 9.15?
2. Who is the Man?
3. Is his wife, who is quoted in the excerpt above, The person who tied up Willow the Dog?
4. Where was the above Woman when she could see 'about three people, including her Husband'?