The viewing began at 2pm and ends at 8pm.
Thursday, 19 year old Dustin Gran and 16 year old Brittnay Navarra pleaded not guilty to charges in the murder of Pike.
Pike was found dead by her fiance inside his Madera home on Monday.
Detectives say Navarra masterminded the murder plot and convinced Gran to carry it out.
She is being tried as an adult.
Police believe Navarra was jealous because her former boyfriend was set to marry Pike.