IMPD is investigating the death of a man who was found dead inside a Planet Fitness Monday on the southside of Indianapolis.

Sink’s family told the local station that their loved one had dealt with drug problems and a needle was in the room at the Planet Fitness.

Karen Wetzel speaks with PEOPLE about her son Derek Sink's last moments before he was found dead in a Planet Fitness tanning bed in Indianapolis. He had been in the tanning bed for three days before he was discovered.