Misty Phelps, 25,Tristan Phelps, 1, and Riley Phelps, 2, killed when vehicle crashes into Fernan Lake in Kootenai County, Idaho

Detectives are asking for the public's help in identifying people with vehicles that used that boat launch and parking area the night of November 2, 2016 between the hours of 8 p.m. and 10:30 p.m. Detectives are specifically interested in speaking with the driver of a dark colored SUV seen leaving the area around 10 p.m. that evening.