A young athlete’s death has been mired in mystery since he drowned in a Texas lake three months ago. Now, two teens who were with him have been charged with evidence tampering – fueling anger and speculation about what happened to Daniel Erving.

The 18-year-old drowned in April at Lake Ray Hubbard, about 15 miles east of downtown Dallas. Authorities have now charged two teens – 19-year-old Lucas Roper and a juvenile – with evidence tampering, CNN affiliate WFAA reported.

“As a mother, I knew something was wrong on day one,” Erving’s mother, Tameca Erving, said at a news conference Tuesday.

“I feel like my son only received partial justice. But we’re here to have murder charges brought against those two.”

The latest news in the Erving case evoked fresh memories of another 18-year-old Black man, Nolan Wells, who died while on a Fourth of July trip to Horn Island off the coast of Mississippi.