Due to his condition, of having syptoms of early dementia, he had triggered his medical alarms at his house by accident. Because of the alarms, cops would show up to check in with mr. Serna. 
Rogelio moved into Bakersfield to be closer to his family. He moved from Wasco, California.
On December 13th, 2016, Francisco Serna was murdered by police officers who were answering a call in regards to a man carrying a firearm and flashing it around. The police took no measures to assess the situation and the condition of the vicinity they found themselves in when they arrived at 7900 block of silver birch avenue in Bakersfield, California. According to reports, the cops stepped out of their vehicles when they saw a witness hinting toward Serna who stood on his driveway. One one of the officers fired several rounds and killed him.
Authorities checked the premises, and no guns were found.
His son Roy Serna says the following: “My dad did not own a gun. He was a 73-year-old retired grandpa, just living life... He should have been surrounded by family at old age, not surrounded by bullets.” 
As per usual in their routine, the officer who shot and killed Mr. Serna, has been placed in administrative leave, until a final review is done. 
Until now, no one knows why Mr. Serna stepped outside, and neither does the officer know why he shot him.