Question about finding a summoner who is inactive

Hey everybody and maybe @Riot I've got a question. To be blunt, there's a summoner name I REALLY want. The summoner appears inactive but the name won't be available for a couple years. Is there any way I can get in contact, finding their email, or messaging them otherwise? I sent them a friend request but obviously they'll likely never accept it as they are inactive. Thanks guys. {{sticker:slayer-jinx-catface}}
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