PORTLAND (AP) — A man convicted of shooting at Los Angeles police officers in late 2014 has pleaded guilty to killing an Oregon heavy truck weighmaster months before the California shootout. Dirck White on Wednesday pleaded guilty to murder in the February 2014 the death of 47-year-old Grady Waxenfelter, The Oregonian/OregonLive reported. White, 44, fatally shot the Clackamas County assistant weighmaster during a traffic stop near the community of Boring near Portland, according to court documents.