The Washington State Patrol (WSP) has issued an Endangered Missing Person Alert for two young children, aged 3 and nearly 4, who were last seen on April 4 in Renton, California. The children are believed to be with two adults, Kenny Vaughn and Tara Butler, who may be driving a 2004 silver Cadillac SRX. The alert indicates that this disappearance poses a significant threat to their health and safety.