The Lost Gems: rivalry of two mafia gangs

The Lost Gems tells the story of two mafia gangs, namely the Alberto family and the Porsche family, which are the most famous mafia gangs in the world.

these two mafia gangs

used to be very close

but turned into enemies each other

The reason is,

the Porsche family was accused of get rid off away precious gems belonging to Alberto's family

but the Porsche family never admits it,

Is it true that the Porsche family is the culprit?

Or

was there really a provocateur who deliberately ended their friendship?