I can only share what was relayed to me years ago when I met an elderly American lady whilst on a break in our yoga classes. and this lady had survived an attack by Ted Bundy whilst she was studying in Uni.

she said that her screaming saved her.

no doubt she was one of the lucky ones who escaped.

yes she moved on with her life. but regardless, she still was unable to sleep at nights - had nightmares - and so on. she was lucky as she had supportive friends, a loving family etc.