Sharell Butler stood silently in Bronx Criminal Court late Saturday night, her slight build and young face betraying the serious charges she faces.

Prosecutors say the 15-year-old killed two men in a three-day span.

Butler, who according to court papers also goes by the name "Lady Red," was indicted on 20 charges, ranging from second degree murder to burglary and assault in the deaths of John Hopkins-Drago and Christopher Umpierre.

Police said Sunday Butler is a member of the Bloods, a street gang, and has two previous arrests for assault. Assistant District Attorney Jamiee Nadell said in court that Butler had been identified by separate witnesses in each of the crimes.

Just after midnight on Dec. 21, Hopkins-Drago, 22, was stabbed to death in a Pelham Parkway apartment, according to court documents. Butler was carrying a loaded firearm as she repeatedly stabbed Hopkins-Drago in the company of others, according to the court documents.

Hopkins-Drago's body was discovered seven hours later stuffed in a garbage bag and stowed in a shopping cart in a nearby alleyway, according to police reports.

James Medina, 23, who was arrested Thursday morning in connection with the stabbing, was accused of tampering with the crime scene. Prosecutors say that Hopkins-Drago was murdered in Medina's apartment. Medina was indicted on Friday and is expected back in court Monday

Two days earlier, on Dec. 19, Umpierre, 24, was shot once in the chest in his Dewey Avenue apartment during a robbery attempt. Prosecutors said they believe Butler fired the gun after breaking in to Umpierre's apartment with other individuals. Umpierre later died from his wound.

Police say that they do not have other suspects in either killing.

In court, Butler appeared tired and disheveled, her right hand heavily bandaged, as Judge Stanley Greene ordered her to return to court Wednesday. Her attorney, Xavier Donaldson of Manhattan, would not say how her hand was injured.