Recognized added monogenic causative genes for PD include LRRK2, VPS35, and CHCHD2 causing autosomal dominant PD, and PARKIN, PINK1, DJ‐1, ATP13A2, FBXO7, and PLA2G6 generating autosomal recessive PD (Pang et al., 2019). The gene discussed is LRRK2; the disease is Parkinson disease.