Neola Robinson, 62, of Pelican Bay, is being held on $150,000 bond connected to the death of her husband, Ervin, KXAS-TV in Fort Worth reported Wednesday.
Investigators followed new information in the case to the Robinson's mobile home and Saturday Texas rangers surrounded the home.
"In the front yard of all places -- I mean, how do you get away with something like that?" said neighbor Carolan Wheless, adding Neoloa Robinson was always very sweet.
Robinson's former employer, Michael Wright, filed a missing person's report when Robinson didn't show up for work for nearly two weeks.
"All along, there was hope that maybe he did leave town, but it's hard for them [his family] to accept the reality of what has actually happened here," Wright said, adding that Robinson, a supervisor at TJ Machine and Tool, had been a valuable employee.
Neola Robinson is on suicide watch and a full mental health evaluation in pending.
Criminal background checks on the couple revealed Ervin had burglary, theft and multiple DUI arrests, and Neola was arrested on a misdemeanor charge in Oregon and had eight other surnames.
Beyonce flaunts bikini body, Blue Ivy in vacation pics
Couple mistakenly served bag of cash at McDonald's drive-thru