(WJLA) - While Howard County Police were trying to determine the identity of the Columbia Mall shooter Saturday afternoon, Prince George's County Police responded to a call for a missing person.
As PGPD tracked the missing person's phone, they discovered it was pinging from Columbia Mall. The missing person and the yet-unidentified deceased shooter turned out to be the same person, Darion Aguilar, 19.
Aguilar's mother had called about 1:40 p.m. from their home in the 4700 block of Hollywood Road in College Park to report him missing. An investigator talked with the mother and read Aguilar's journal, which had wording that raised concern for his safety, police say.
The PGPD investigator came to the mall shortly before 6 p.m., but was not allowed to enter the active crime scene. The investigator turned the missing person information over to HCPD officers.
Soon, police discovered the missing man and the man who had killed two people at the mall at about 11:15 a.m. before shooting and killing himself were the same person, Darion Aguilar.