A popular high school tradition is drawing fresh warnings from California law enforcement as graduation season approaches. The Redding Police Department is urging teens to think twice before taking part in “Senior Assassin,” a live-action game where high school seniors track and “eliminate” each other using water guns. There’s an app-driven version of the game that assigns each player a target and uses phone location services to help them hunt each other down. The company behind it, Splashin, has urged safety when using the app. The Redding Police Department is urging teens to think twice before taking part in the live-action game. TikTok/@splashin.app Splashin is a mobile app designed to organize “Senior Assassin” Apple Players advance by soaking their assigned opponent while avoiding being eliminated themselves. Police say the concept may be harmless, but the execution can quickly alarm the public and result in deadly consequences .…