Dallas Police are searching for two suspects in connection with the death of Joshua Brown, who testified at the trial of former Dallas police officer Amber Guyger, officials say. Guyger was convicted of murder last week in the killing of her neighbor Botham John.

Brown was shot during a drug deal Friday night at his apartment complex, Dallas Police say.

Michael Mitchell, 32, Thaddeous Charles Green, 22, and 20-year-old Jacquerious Mitchell traveled from Louisiana planning to buy marijuana from Brown. One of the suspects is in custody and hospitalized, WFAA reports.

The men got into a fight, and Brown shot Jacquerious Mitchell in the chest, police said. Green then shot Brown. Jacquerious Mitchell told police he heard two gunshots. 

Jacquerious Mitchell remains hospitalized. The other two men have not been arrested yet, police said. 

Investigators found 12 pounds of marijuana and about $4,000 in cash in Brown's apartment during a search, officials said. 

Since news of Brown’s death broke publicly, conspiracy theories have been swirling about why he was gunned down. Many have said the Dallas Police Department was responsible for the man's slaying. 

“I assure you that is simply not true,” Assistant Police Chief Avery Moore said of the rumors during a news conference Tuesday.