David Ernest Mascarenas, DOB: 4-29-61, appeared in Jefferson County Court yesterday where he pled guilty to six counts for robbing a homeowner at knifepoint using the ruse of a Craigslist transaction.Mascarenas and David Martinez arrived at the home of Anthony Mott on S. Taft Court in unincorporated Jefferson County on January 24, 2016. They were invited in. There was a brief discussion before Mascarenas tied Mr. Mott’s wrists and held a knife to his neck. The men also had a gun. Mascarenas and Martinez stole wallets, purses, and electronics. They were in the process of stealing Mr. Mott’s vehicle when Mr. Mott was able to break free from his bindings. Mr. Mott was armed when he went to his front porch and yelled to the men to stop. Ultimately, he fired his gun when he believed Mr. Martinez was about to fire at him. Mr. Martinez was hit by the gunfire and died of his injuries.Mr. Mascarenas was arrested two days later by the Jefferson County Sheriff’s Office after he made numerous transactions with Mr. Mott’s credit cards.Mascarenas pled guilty to Aggravated Robbery, First Degree Burglary, Motor Vehicle Theft, Menacing, ID Theft, and False Imprisonment. Sentencing has been set for December 9 at 1:00. He faces a sentencing range of 32-40 years in prison.