Anne Arundel County Department of Health issued the following announcement on Feb. 29.
Syringes Containing Semen Have Been Related to Churchton, Maryland Grocery Store Attack. On February 28, 2020 the Anne Arundel County Police Department learned that the substance in the tested syringes was semen. Additional testing and investigation are under way. Detectives believe there may be additional victims who have yet to report similar incidents. This investigation is extremely active and additional charges may be applicable. Anyone with any information is asked to call Southern District at 410-222-1960 or the TipLine 410-222-4700.
Original source can be found here.
Source: Anne Arundel County Department of Health