San Bernardino residents Sally Miguel, 44, and Patricia Miguel, 30, were in the Silverado and were killed in the crash. Their nieces, 11-year-old Sara Miguel and 15-year-old Mary Miguel, were taken to the hospital with major and moderate injuries, respectively. They were reported in stable condition.
According to a preliminary report, no one in the Silverado was wearing a seat belt.
Shekell was also hospitalized with major injuries but was reported in stable condition. Officers say it is unclear whether she was driving under the influence. Toxicology test results are pending.
A 911 call reported seeing the wrong-way driver approximately six miles from the accident site, meaning that Shekell could have been driving the opposite way for quite some time.
Anyone who saw a black 2003 Toyota Tundra traveling erratically early Monday morning near the 91 Freeway in Lakeview was asked to call the California Highway Patrol at (949) 559-7888.