Police make arrest in stabbing of 16 year-old in Waldorf

Conall Robert Keller, 16

Waldorf, MD - On March 16 at 1:25 p.m., officers responded to the 3100 block of Heathcote Road in Waldorf for the report of a stabbing. When officers arrived, they located a 16-year-old male with stab wounds to his chest. He was flown to a hospital and admitted in stable condition.

The suspect, Conall Robert Keller, 16, of Waldorf, was arrested on the scene. A preliminary investigation revealed the suspect and victim are known to each other and the suspect stabbed the victim over a disagreement related to the sale of a pack of cigarettes. Keller was subsequently charged as an adult with attempted first-degree murder, first-degree assault and second-degree assault.

Anyone with additional information relating to this case is asked to call Detective Johnson at (301) 609-6453. Tipsters wishing to remain anonymous may contact Charles County Crime Solvers by calling 1-866-411-TIPS or submitting a tip online at or by using the P3Intel mobile app.

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