Russell Neal

Hi-Five singer Russell Neal's wife was killed after being stabbed multiple times and he's now been charged with murder. Cops say Catherine Martinez died from blunt force trauma and stab wounds. The victim was a hot, 24-year-old fitness model. She was also an aspiring boxer who went by the name…

TMZ has learned ... '90s singer Russell Neal from Hi-Five is in police custody ... after he told cops his wife was dead inside their apartment ... and he needed a lawyer. Neal went to the local jail and apparently told Houston cops he and his wife had gotten into an argument Wednesday ... the…