The investigation into the deadly fire at an Akron home continues as investigators work to determine if the fire the killed seven people was a result of an accident or arson.

A memorial continues to grow more than 24 hours after a fire destroyed the home early Monday morning.

There were seven people killed in the fire, including father Dennis Huggins, mother Angela Boggs, Cameron Huggins, Alivia Huggins, Kylle Huggins, Daisia Huggins and Jered Boggs.

WATCH I Family members of Akron residents who passed away in fire speak to WKYC

Amanda Boggs, the half-sister of Brittany Boggs who was out of town when the fire broke out, was in tears as she visited the Fultz Street home Tuesday afternoon, surrounded with unanswered questions on why and how seven people lost their lives.

“I just hope that Brittany, her aunts and uncles get the answers they deserve for what happened here,” said Amanda.

Investigators are still trying determine the cause of the deadly fire. Sources with the fire department tell WKYC Channel 3 News that hot charcoal from a Mother's Day barbecue may have been dumped into a trash container and left near the front of the home, which sustained the heaviest damage.

Channel 3 News also learned that Angela Boggs’ estranged husband, Patrick Boggs, 47, of Ravenna, was taken into custody on a parole violation and his apartment was searched Monday night. Patrick spent years in prison after he was convicted of arson. He was released in 2013. Court documents revealed that he doused Angela with kerosene and threatened to use a cigarette lighter in 2001. While he is considered a “person of interest,” officials say he is not a suspect at this time. Investigators are still working to determine if arson was involved or if was an accident.

Recent court records show that Boggs’ driver’s license was suspended for failing to pay child support. Boggs was also charged with possession of marijuana on Feb. 26 and has a court hearing scheduled on May 24.

Amanda said she hasn’t seen her father, Patrick, since she was seven years old. She says

“Dealing with them being gone is enough, and to hear that “what if” he had something to do with it is not something she should have to deal with at all.”

Investigators also are not sure as to whether there were working smoke alarms present in the home at the time of the fire. That unanswered question has city officials reaching out to the community to provide free smoke detectors following one of the city’s deadliest fires.

READ MORE I Free smoke detectors available to Akron, Summit County residents