Rich Russian family dead in Lloret del Mar. Spanish police suspects “sexist violence" and suicide

I’ve been to Lloret del Mar, it’s pretty nice… Sergey Protosenya, a former executive at Novatek, was found hanged, his wife and daughter murdered, next to them a bloody knife and an axe. Spanish police suspects a murder-sucide and domestic violence. Could be, but Novatek is the second largest natural gas company in Russia after Gazprom, and a former Gazprombank executive also supposedly killed his wife and daughter and then himself the same week in Moscow. Could it be related to current events? He seems a small fish. Mystery.