User blog comment:Paul.rea/Teen Wolf News 080613/@comment-112.207.147.227-20130807032531

if its worth anything i was able to put together a timeline.

derek was age 15 during the time of paige death. (irrefutable)

a few months after pages death is the attempted murder of jennifer blake or whatever her name is. (irrefutable)

now....

sherif stalinski said he needed medical records records about 10 or so years ago. (give or take a few years i have to compare documents from season 1 to that med record mama mccall showed the sheriff)

so derek is approximately 25 years old. give or take....

therefore deucalion started to feed on his betas 10 years ago (starting with marco). a few months after that was when kali tried to kill the darach.