D4vd is being represented by a public defender after his lawyers withdrew.
In a YouTube video, posted under the name "Diaperman," Gusmane Coulibaly pretended that strangers owed him money, and set out on a five-borough tour to "see which borough has the most crash outs."
Prosecutors say Asif Qureshi hid in his estranged wife's home in Herricks in October and waited until she was alone before poisoning her with cyanide.
Nick Reiner's defense attorney, Alan Jackson, withdrew from the case during Wednesday's court appearance.
Officials say the 23-year-old victim was filling in for a co-worker at the cash register that day.
Ashlee Buzzard has been charged with murder with special allegations in the shooting death of her 9-year-old daughter Melodee Buzzard, according to court documents.