Detectives who searched Sarah Hart’s cell phone after her wife Jennifer Hart drove the family SUV off the California coastal cliff, killing all eight, found chilling searches she conducted after the family fled a child welfare investigation in Clark County, Washington.

Among the Google searches conducted on Sarah Hart’s phone, said California Highway Patrol Officer Jay Slates:

“Can 500 mgs of Benadryl kill a 120-pound woman?”

“Is death by drowning relatively painless?”

“How long does it take to die from hypothermia while drowning in a car?”

“No-kill shelters for dogs”

The family often traveled and always took their two dogs with them, Slates said. Since the family fled Washington, no one has found their dogs. Slates said there is no evidence they in fact stopped at an animal shelter.

Slates said the searches on Sarah Hart’s phone began at 12:30 a.m. the morning after the family drove away from their Woodland, Washington, home. Sarah Hart texted co-workers at 3 a.m. that she was sick and would be unable to work that day.

Slates said Sarah Hart deleted the searches from her phone but that a forensic search was able to find them anyway.

-- Molly Young