Jake and Romy Reiner are sticking by each other during this unimaginable tragedy. The brother and sister have been supporting each other ever since their parents, Rob and Michele, were tragically killed earlier this month, allegedly by their own brother Nick, who is now in custody. They've since been spotted in Malibu, where they spent the holidays and Romy's recent 28th birthday as they grieve this heartbreaking situation. Now, a source is opening up about how their already really "strong bond" is pulling them through this.