The ones hit so far are in the Eagle Lakes subdivision of Friendswood.
In two of the three burglaries, the crooks ignored the electronics and instead headed straight for the jewelry and guns, including shotguns and pistols.
After 12 and half years crime-free, John Lowe discovered the break-in.
"I thought it was the safest place in the whole area," he said.
In less than two hours' time Thursday night, someone had broken out the back window, emptied out his wife's jewelry case and ransacked the closet.
"They mostly knocked stuff down and had cameras over here but didn't take the cameras. They just took the pistol," Lowe said.
In the end, they stole at least $5,000 worth of jewelry and guns, plus more.
"You feel violated and then you get mad," Lowe said.
The Lowes' burglary is the third one this month in the Eagle Lakes subdivision; all had similar MOs. The crooks enter through a back window or door, focus on the master bedrooms, steal jewelry and guns before leaving.
All the victims live near the greenbelt, and Friendswood police believe the burglars might be watching for their opportunity. They have alerted residents, and Lance Smith is heeding the warning.
"We've got four kids. They're very young and we want to make sure it's a very safe environment for our family," Smith said.
Police encourage folks to use alarm systems. The Lowes in fact did.
"The way they broke in, didn't set it off," Lowe said.
It is certainly frustrating, though Lowe, a grandfather, prefers to be positive.
"Nobody got hurt and I guess we can replace the stuff, so in that respect, we came out OK," he said.
Friendswood police encourage residents to look out for their neighbors and keep a current inventory of their possessions. Police are even offering security assessments for residents by appointment.
If you have any information, call Friendswood police.
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