DALY CITY (CBS SF) — A San Mateo County family is offering a $10,000 reward for information leading to the arrest of the person they say recently attacked their elderly grandfather.

Security video shows the moments a suspect kicked 84-year-old Salomon Hernandez to the ground.

READ MORE: UPDATE: Police Say 18 Shot, Six Killed In Downtown Sacramento Mass Shooting

The incident happened right outside his front door in Daly City nine days ago.

The surveillance footage showed Hernandez couldn’t get up and stayed on a ground for several minutes. His wife eventually heard him and came over to help him up.

READ MORE: Three Seriously Injured During Overnight San Jose Sideshow Activity

He only got scrapes and bruises on his arms, but his family is worried he is possibly being targeted. They say the same man may have attacked their father back in September.

The attacker in the surveillance video appeared to be a heavy-set man in his 30s or 40s. Detectives said this kind of attack is very uncommon in Daly City.

MORE NEWS: Zelenskyy Accuses Russia of Genocide for Alleged Atrocities in Ukraine

Anyone with information about who the suspect may be is asked to call Daly City police.

Source: sanfrancisco.cbslocal.com.