Experts on police training and psychologists, however, are split as to the credibility of Officer Amber Guyger's story about how she came to kill 26-year-old Botham Jean, and that credibility will be key to whether a grand jury will indict Guyger and whether she could persuade a trial jury that the killing was tragic, but justifiable.
Two fired cartridge casings, a police backpack and vest and a metal marijuana grinder were some of the other items recovered from Jean's apartment following the search warrant. "The officer that killed him should be the one being evaluated", one person wrote.
Dallas police did not immediately respond to a request for comment on the criticism.
Guyger has since been charged with manslaughter and a quick search of her social media reveals some rather offensive posts.
She told police it wasn't until she turned on the lights that she realized she was in the wrong apartment, an affidavit said.
"I'm calling on the Dallas officials", said Jean, who lives in the Caribbean island of St. Lucia where she was a government official.
David Menschel, an Oregon-based criminal defense attorney and activist, called the release of the search warrant "propaganda". The search warrant states that when Guyger was trying to enter the apartment, Jean "confronted the officer at the door". He described Jean's death as a tragedy that could have been avoided and said the group wants to know why Guyger has not been fired.
Dallas Mayor Mike Rawlings and Dallas Police Chief U. Renee Hall were among those who attended the hymn-filled funeral.More news: Amazon Prepping 8 New Alexa Products
More than 1,500 people gather at Greenville Avenue Church of Christ to remember the life of Botham Jean. She saw a figure in the dark and fired her weapon after Jean did not obey her verbal commands.
According to Benjamin Crump, another attorney representing Jean's family, the discovery is "completely irrelevant", he told NBC DFW. It was then Guyger claims "she had encountered a burglar, which was described as a large silhouette, across the room in her apartment".
"They [police] immediately began looking to smear him", Merritt said, reported Associated Press.
He also says they may have included "narcotics" in the search warrant because someone may have already seen it out in the open in the apartment.
Mother of #BothamJean, Allison Jean, says the "smear" of her son is unacceptable.
This is clearly a tactic to criminalize the victim, which we have seen happen constantly, from Trayvon Martin to Tamir Rice.
"The taint on the investigation from the beginning was exposed through that warrant and through that content. It's telling that in a homicide investigation they went looking for drug paraphernalia", Merritt said.
"The information released yesterday, was worse than the call I received last Friday", said Jean's mother, Allister Jean.
It is not clear what, if any, search warrants have been executed on Guyger's property. "It's just good police work".