Bond Set at $1M for Cheyenne Man Charged With Killing 2-Year-Old The man accused of killing a 2-year-old Cheyenne boy whose body was found in a dumpster made his initial appearance Tuesday in Laramie County Circuit Court. Wyatt Dean Lamb, 27, is charged with 10 counts of child abuse and one count of first-degree murder in the death of Athian Rivera, his now ex-girlfriend Kassandra Orona's son. Police say they were called to Orona's apartment shortly after 1 p.m. on Feb. 19 after she reported that Rivera was missing. The toddler's "still warm" body was found wrapped inside five trash bags -- later found to have Lamb's fingerprints on them -- in a nearby dumpster about two hours later, according to an affidavit.