A woman who was killed in a crash Monday was pregnant. Monique K. Leiwalo, 29, was due to give birth in May. She was driving on Rainbow when her car was rear-ended. The impact sent her car crashing into a pole, killing her. Police arrested 26-year-old Timothy Naas on suspicion of DUI in the crash. “We didn’t just lose her, we lost my nephew to-be,” her sister, Jasmine Leiwalo, said.