SEE IT: Man nonchalantly tries to break into Arlington home, makes off with family heirlooms

ARLINGTON, Wash. -- After getting out of a white Mazda 626, a man knocks on the front door of an Arlington home.

“He seemed nonchalant walking up to the door to see if I was home,” Deena Iverson said Thursday.

When no one answered, surveillance video captured the thief's struggle to break in through the side door. That didn't work, so he pried open the back door.

"He went straight into the bedroom here,” Iverson said.

A thief took off with a tote full of stolen goods belonging to Iverson’s family.

“It was strange that he did take my husband’s Social Security card from his tin box,” Iverson said.

The crook also stole her husband’s watch.

But what hurts the most is all the stolen family heirlooms.

“He had gotten my late husband’s wedding set that was for my kids as well,” Iverson said.

Those memories may be gone but Iverson’s investment on surveillance cameras are now paying off for cops trying to catch the heartless thief.

“The more cameras the better,” detective Glenn DeWitt with Snohomish County Sheriff’s Office said.

It’s important to have surveillance cameras but where you place them is as important as having them.

DeWitt says the biggest mistake many people make is installing cameras too high up.

“If they put them too high, the problem is we are looking down at someone’s head,” DeWitt said.

The goal is to capture the face -- you also need cameras on the outside of every door, front and back.

And don’t forget the inside of your house and garage.

“It’s important to have a camera inside your houses as someone enters so you have a good shot of their face,” DeWitt said.

In Iverson's case, the thief is captured again rummaging through their garage, another angle that could help this case.

“I want him caught,” Iverson said.

If you have any information about this case, call Crime Stoppers at 1 800 222 TIPS. There is a $1,000 reward for information leading to an arrest.