Do not make accusations without providing evidence. Doing so is a personal attack and will likely be summarily removed.
Do not link to or include material that may reveal personal information about an editor. Doing so is outing and will be dealt with accordingly.
Are you requesting checkuser attention to this investigation?
If you have requested that a checkuser supply information to this investigation, you must:
explain how you know the accounts belong to one person
explain how the accounts are being used abusively
explain why CheckUser evidence is needed (in most cases it isn't)
support your case using diffs: Clerks and checkusers will not do so for you!
If you do not clearly and adequately explain why you suspect sockpuppetry or you fail to provide supporting evidence, the investigation may be summarily closed (and the request for CheckUser will certainly be declined). For assistance, contact an SPI clerk.
You need to get User:GeneralNotability/spihelper.js in your life: mw.loader.load('//en.wikipedia.org/w/index.php?title=User%GeneralNotability%2Fspihelper.js&action=raw&ctype=text/javascript');//[[User:GeneralNotability/spihelper.js]]