Two more suspects were arrested last night in Fort Worth in connection to a home invasion in Briar last week that left an 81-year-old man in critical condition. Christopher J. Hammons, 26, and Michael A. Cordova, 33, both of Fort Worth, were arrested near their homes. Both have been charged with injury to the elderly, a first degree felony. They are being held in Wise County Jail under $100,000 bonds. Officers had already arrested Roger L. Hammons, 49, and Jimmy R. Murrell, 49, in connection with the case. The victim, Marvin Zimmerman, remains in the intensive care unit of John Peter Smith Hospital in Fort Worth. A neighbor found Zimmerman in his home Friday morning bound and “basically left for dead” said Wise County Sheriff David Walker. The four men invaded Zimmerman’s home and allegedly bound him to a chair. They then tied him up and proceeded to shock him several times with a stun gun and kick and hit and punch him while demanding he tell them where some item or items hidden in the home. They ransacked the home and left the victim handcuffed to a chair, with his head duct-taped, for at lest 48 hours before the neighbor found him. It’s unknown what prompted such brutality by the suspects. Zimmerman used to let Murrell and his girlfriend live with him. “He was trying to help Murrell get back on his feet,” Walker said. “This is how he repaid his kindness.” One of the suspects told investigators that they thought the elderly man living alone “would be an easy hit.” In just five days after Zimmerman was found it appears all those involved have been arrested. “This was really good police work,” Walker said. “Everybody at our office worked hard on this, and there’s been great cooperation with Parker County Sheriff’s Office, the Texas Rangers and the Fort Worth P.D.” The case is still under investigation and more charges are possibly pending. Law enforcement is also monitoring Zimmerman’s condition. If he dies, the charges could escalate to capital murder, Walker added.