Female Criminals: The Mastermind's Girlfriend

The murder of Dan Markel was driven by the Adelson family's strong desire to have Wendy Adelson and her children relocate to South Florida, a move Dan Markel had successfully blocked in court. Charlie Adelson, Wendy's brother, and his mother, Donna Adelson, were particularly incensed by Markel's resistance. Katherine Magbanua, Charlie's girlfriend, served as the crucial link, enlisting her ex-boyfriend Sigfredo Garcia and his associate Luis Rivera to carry out the hit.

Court documents and arrest affidavits allege the motive stemmed from the Adelson family's 'desperate desire' to relocate Wendy and the children. Luis Rivera's testimony directly implicated the 'Adelson family' in hiring Garcia. Phone records showed extensive communication between Charlie Adelson and Katherine Magbanua, and payments from the Adelson Institute to Magbanua began two months after the murder and continued until arrests were made.

Katherine Magbanua was the central figure connecting the Adelson family to the actual hitmen. She facilitated the murder plot and received payments from Charlie Adelson. Initially, she denied any involvement, even during her own trials, which resulted in a mistrial in her first attempt to avoid conviction. However, after her conviction and sentencing, she changed her testimony, admitting her previous denials were false and implicating Charlie and Donna Adelson in the conspiracy.

Investigators alleged Magbanua 'enlisted the father of her two children, Sigfredo Garcia, and his close associate Luis Rivera to carry out this murder, and they were all compensated for their actions.' Luis Rivera's testimony stated, 'Katie was involved. She was the mastermind. She was the middleman.' Magbanua herself testified in Charlie Adelson's trial, 'No, ma'am, it was not' when asked if her previous defense was truthful, and 'Yes, ma'am, I was' when asked if she was in the middle.

A key piece of evidence against the Adelson family and Katherine Magbanua came from a law enforcement 'bump' operation. An undercover agent approached Donna Adelson, pretending to be a gang member seeking money related to the Markel murder. Donna then called Charlie, who in turn called Katherine. These recorded phone calls, particularly a 23-minute call between Charlie and Katherine, captured their frantic discussions about the 'harassment' and attempts to understand who was 'using my name,' providing strong circumstantial evidence of their guilt.

An FBI special agent testified that after the bump, Donna called Charlie, who called Katherine. A wiretap recorded Charlie telling Katherine about the approach, mentioning 'his ex-girlfriend' and 'asking my mom for some money.' Katherine's frustrated and expletive-laden response on a 23-minute call was presented as evidence, and she later admitted on the stand that she was unaware she was being recorded.

The extensive investigation and multiple trials ultimately led to the convictions of key members of the Adelson family. Charlie Adelson was convicted of first-degree murder, conspiracy, and solicitation. His mother, Donna Adelson, was also convicted of first-degree murder, conspiracy, and solicitation. These convictions solidified the prosecution's theory that the murder was a family-orchestrated plot.

Charlie Adelson was arrested in April 2022 and convicted on all counts in October 2023, receiving a life sentence. Donna Adelson was arrested in November 2023 while allegedly trying to flee to Vietnam and was subsequently convicted of first-degree murder, conspiracy, and solicitation.