The late Gene Hackman and Betsy Arakawa’s neighbors Daniel, Barbara and Aaron Lenihan tell PEOPLE about their life and relationship in Santa Fe, New Mexico: 'They seemed like real life partners, really,

Betsy Arakawa was a classical pianist, creative partner and supportive wife who loved watching DVDs with her husband Gene Hackman.

Santa Fe County Sheriff Adan Mendoza told NBC's “Today” show that investigators were trying to sort out conflicting stories about the doors. He said several doors were unlocked and a rear door was open, which allowed two dogs that survived to go in and out. He also said he thinks the front door was closed but unlocked.