This tragic case from Pierce County, Washington, involves two young parents charged with murder in the death of their 7-week-old son, N.C., from abusive head trauma on March 9, 2026.
Key Details from Reports
- Injuries and Death: Admitted to Mary Bridge Children’s Hospital in Tacoma on March 4 in critical condition after 911 call. Autopsy confirmed homicide via abusive head trauma, including subdural hemorrhages, anoxic brain injury, retinal hemorrhages, and possible healing rib fractures.
- Father’s Admission (Mark Anthony Labaco Clamor, 21): Jerked the fussy baby roughly, causing his head to “jerk back pretty hard.” Waited ~1 hour after noticing distress before calling 911.
- Mother’s Account (Alyssa Jade Vanderbeck, 19): Heard grunting post-shower; both shook the unresponsive infant in panic. Filmed distressed videos (labored breathing, posturing) sent to family.
- Hospital Behavior: Returned after going home; police noted “unusual demeanor.” Vanderbeck posted a TikTok on March 8 dancing slowly to upbeat music in the baby’s hospital bathroom while he was dying.
- Charges: Both face second-degree murder; Clamor also charged with homicide by abuse. Held on $1M bonds each. No comment from legal reps.
Details from a Lakewood PD affidavit via PEOPLE. Cases like this highlight shaken baby syndrome risks—CDC data shows it causes ~1,200 U.S. infant brain injuries yearly, often fatal without immediate care. Vanderbeck appeared emotional in court on March 12.









