( CNN ) -- One of three malnourished men found earlier this month in the garage of a Houston home has died , police said Tuesday . He and the other men told police they 'd been held captive before they were discovered July 19 . William Merle Greenawalt , 79 , was pronounced dead six days later , Houston police said in a statement , which did not detail a cause of his death . The two other men , ages 59 and 64 , who were allegedly held captive have been released from hospitals to the care of the state 's Adult Protective Services . Walter Renard Jones , 31 -- a grandson of the home 's owner -- has been charged with injury to the elderly by act and injury to the elderly by omission , according to Houston police spokeswoman Jodi Silva . The charges came after officers responded to a call at a modest single-story Houston home and found three men `` living without any level of care , '' police said . `` The three men claimed to have been misled by the suspect ( Jones ) into residing at the home in exchange for food and shelter , '' police added . `` All three men claimed the suspect used force and coercion to keep them there for the purpose of monetary gain . '' Investigators were looking into whether the men had been forced to hand over their government aid , including disability , Social Security and veterans checks . At least some of the alleged captives were believed to be homeless . `` What the men initially told us was they were lured there with the promise of cigarettes and food , '' Silva said earlier this month . The men told the officers that they had been held for varying lengths of time . One man told them it felt like 10 years , but Silva said earlier this month , `` Whether it goes into years or not is unknown . '' CNN 's Greg Botelho , Ed Lavandera and Joshua Rubin contributed to this report .
3 men were found `` living without any level of care '' in a Houston garage , police said . 1 of them later died , police said , without giving a cause of death . The 2 others have been released from area hospitals . A grandson of the home 's owner has been charged in the case .