Longmont police are asking for the help of the public in identifying this woman and locating this stolen dog.

Police are searching for a woman who took a man's dog while he lay dying in a 7-Eleven in Longmont last night. The dog answers to both the names 'Sampson' and 'Sammy.'

Sammy | Courtesy of Longmont Police Department

The man, who hadn't been feeling well all day, walked his dog to the 7-Eleven convenience store at 1650 N. Main Street last night, where he then collapsed and suffered a seizure. While rescue workers were responding to the scene, an unidentified woman took the dog and left. The man, 59, later died at a local hospital.

According to a Facebook post by the Longmont Police Department,

"The family does not know this individual and the police have not been contacted regarding his dog. Public Safety staff does not know what the purpose was in removing this dog, but we ask that you please return their dog to the Longmont Police Department, 225 Kimbark, in Longmont. They not only lost a treasured family member, but are also missing his companion. If you have information that would lead to the identity of the person in the attached photos we ask that you contact the Longmont Police Department at (303)651-8555. LPD Report #19-7137."

Surveillance video shows the woman very clearly.

Courtesy of Longmont Police Department

If you know this woman or have seen her or the dog, please contact the Longmont Police Department at (303) 651-8555.